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How to Determine Group from Successive Ionisation Energy
Let's take a look at the following successive ionisation energies for elements P and Q.
In this video we want to deduce the formula of the compound formed between elements P and Q.
First we need to deduce the group that each element is from based on its successive ionisation energies.
1. Successive Ionisation Energies always increase.
When we supply energy to remove electrons from an atom, the first electron removed will be farthest away from the nucleus.
This is because the attraction between the nucleus and the farthest electron will be the weakest.
Hence least amount of energy is required to overcome this attraction and the first ionisation energy will be the least endothermic.
When more electrons are removed, they are progressively closer to the nucleus hence more energy is requ...
published: 04 Jan 2022
-
Worked example: Identifying an element from successive ionization energies | Khan Academy
Keep going! Check out the next lesson and practice what you’re learning:
https://www.khanacademy.org/science/ap-chemistry-beta/x2eef969c74e0d802:atomic-structure-and-properties/x2eef969c74e0d802:periodic-trends/v/electron-affinity
When electrons are removed in succession from an element, the transition from removing valence electrons to removing core electrons results in a large jump in ionization energy. By looking for this large jump in energy, we can determine how many valence electrons an element has, which in turn can help us identify the element. View more lessons or practice this subject at https://www.khanacademy.org/science/ap-chemistry-beta/x2eef969c74e0d802:atomic-structure-and-properties/x2eef969c74e0d802:periodic-trends/v/worked-example-identifying-element-from-successive-ion...
published: 10 Sep 2019
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A Level Chemistry Revision "Trend in First Ionisation Energy Down a Group"
You can find all my A Level Chemistry videos fully indexed at https://www.freesciencelessons.co.uk/a-level-revision-videos/a-level-chemistry/
In this video, we look at the trend in first ionisation energy down a group. We then look at how we can use successive ionisation energies to determine the group number of an element.
published: 31 Oct 2022
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Using ionisation energies to work out the identity of an element
How to work out which group and element is it from a table of ionisation energies
published: 11 Apr 2013
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CHEMISTRY 101: Trends in Ionization Energies
In this tutorial video, we compare trends in the first ionization energy, second ionization energy, and third ionization energy for Na, Mg, and Si. Electron configurations are used to determine if a core electron or valance electron is being removed.
published: 22 Sep 2016
-
The Powercube - Revolutionizing Green Energy with Neutrinovoltaic
Introducing the revolutionary #powercube - a cutting-edge technology that harnesses the power of vicinity to provide clean, renewable #energy with the help of artificial intelligence.
Find out more: https://neutrino-energy.com/powercube-neutrinovoltaic/
published: 31 Dec 2022
-
Q&A 2 Determining group number from successive ionisation energies
published: 24 Nov 2021
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The Periodic Table: Atomic Radius, Ionization Energy, and Electronegativity
Why is the periodic table arranged the way it is? There are specific reasons, you know. Because of the way we organize the elements, there are special patterns that emerge. And you know how Professor Dave feels about patterns. He likes them.
Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem
More AP Chemistry review materials from me: bit.ly/URPDave
Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem
Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem
Biology Tutorials: http://bit.ly/ProfDaveBio
Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1
Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2
Mathematics Tutorials: http://bit.ly/ProfDaveMaths
EMAIL► ProfessorDaveExplains@gmail.com
PATREON► http://patreon.com/ProfessorDaveExplains
Check...
published: 03 Sep 2015
-
Systems Group Seminar: "Fine-Grained Energy Attribution for Multi-Tenancy" (extended talk+live demo)
• Presented by Hongyu Hè at ETH Zurich
• Joined work with Michal Friedman and Theodoros Rekatsinas
• Code: https://github.com/HongyuHe/energat
• Paper: https://hongyu.nl/papers/2023_hotcarbon_energat.pdf
• Slides: https://hongyu.nl/archive/sys_seminar_energat_slides.pdf
Abstract:
Due to the end of Dennard scaling, performance gains from hardware (HW) miniaturization come with higher power density. Consequently, computing incurs 2–4% of world-wide emissions, on par with the entire aviation industry's footprint. This footprint is predicted to double in the next decade, undermining the objective of sustainable computing. Increasing observability and user awareness is crucial, yet hindered by the absence of HW support and a standardized, software-centric method. Aiming to overcome this chall...
published: 20 Oct 2023
-
Welcome to Chevron Renewable Energy Group
Since 1995 Chevron Renewable Energy Group has led with its pioneering spirit as a front-runner in innovation and a positive force for good. Learn how you can join our journey to lead the transformation to renewable fuels and find new ways forward
published: 15 Dec 2022
10:21
How to Determine Group from Successive Ionisation Energy
Let's take a look at the following successive ionisation energies for elements P and Q.
In this video we want to deduce the formula of the compound formed betw...
Let's take a look at the following successive ionisation energies for elements P and Q.
In this video we want to deduce the formula of the compound formed between elements P and Q.
First we need to deduce the group that each element is from based on its successive ionisation energies.
1. Successive Ionisation Energies always increase.
When we supply energy to remove electrons from an atom, the first electron removed will be farthest away from the nucleus.
This is because the attraction between the nucleus and the farthest electron will be the weakest.
Hence least amount of energy is required to overcome this attraction and the first ionisation energy will be the least endothermic.
When more electrons are removed, they are progressively closer to the nucleus hence more energy is required.
This means successive ionisation energies will always increase, or it will always require more energy to remove the next electron.
2. Determine Group of Element P
Let's take a look at the differences in successive ionisation energies for element P.
We are interested in a big jump in IE as it represents a change in a principal quantum shell.
Notice there is a very significant increase or jump between the second and third ionisation energy, as compared to the first and second ionisation energy.
This means that the third electron is significantly harder to remove as compared to the second electron.
Therefore the third electron must have a much stronger attraction to the nucleus and it must be much closer to the nucleus as compared to the second electron.
Hence the third electron must be from an inner principal quantum shell, and the second and earlier electrons are from a valence shell.
Element P has 2 valence electrons and is in Group 2.
3. Determine Group of Element Q
The first big jump in IE is between the fifth and sixth electron.
This means that the sixth electron is from an inner principal quantum shell, experiences a much stronger attraction with the nucleus hence requires much more energy to remove.
The fifth and earlier electrons are from a valence shell, element Q has 5 valence electrons and is in Group 15.
4. Deduce Formula of Compound
P is a Group 2 metal hence will lose 2 electrons to form cation P2+ when forming compounds.
Q is a Group 15 non-metal and will gain 3 electrons to form anion Q3- when forming compounds.
Therefore the formula of compound formed between P and Q will be P3Q2.
Topic: Atomic Structure, Physical Chemistry, A Level Chemistry, Singapore
Please SUBSCRIBE to my channel and SHARE this video with your friends if you find it helpful!
View the full video with description at my website https://chemistryguru.com.sg/det-group-from-successive-IE
Looking for more FREE A Level Chemistry videos? Check out our huge collection of video lessons at https://chemistryguru.com.sg/a-level-chemistry-video-lessons
https://wn.com/How_To_Determine_Group_From_Successive_Ionisation_Energy
Let's take a look at the following successive ionisation energies for elements P and Q.
In this video we want to deduce the formula of the compound formed between elements P and Q.
First we need to deduce the group that each element is from based on its successive ionisation energies.
1. Successive Ionisation Energies always increase.
When we supply energy to remove electrons from an atom, the first electron removed will be farthest away from the nucleus.
This is because the attraction between the nucleus and the farthest electron will be the weakest.
Hence least amount of energy is required to overcome this attraction and the first ionisation energy will be the least endothermic.
When more electrons are removed, they are progressively closer to the nucleus hence more energy is required.
This means successive ionisation energies will always increase, or it will always require more energy to remove the next electron.
2. Determine Group of Element P
Let's take a look at the differences in successive ionisation energies for element P.
We are interested in a big jump in IE as it represents a change in a principal quantum shell.
Notice there is a very significant increase or jump between the second and third ionisation energy, as compared to the first and second ionisation energy.
This means that the third electron is significantly harder to remove as compared to the second electron.
Therefore the third electron must have a much stronger attraction to the nucleus and it must be much closer to the nucleus as compared to the second electron.
Hence the third electron must be from an inner principal quantum shell, and the second and earlier electrons are from a valence shell.
Element P has 2 valence electrons and is in Group 2.
3. Determine Group of Element Q
The first big jump in IE is between the fifth and sixth electron.
This means that the sixth electron is from an inner principal quantum shell, experiences a much stronger attraction with the nucleus hence requires much more energy to remove.
The fifth and earlier electrons are from a valence shell, element Q has 5 valence electrons and is in Group 15.
4. Deduce Formula of Compound
P is a Group 2 metal hence will lose 2 electrons to form cation P2+ when forming compounds.
Q is a Group 15 non-metal and will gain 3 electrons to form anion Q3- when forming compounds.
Therefore the formula of compound formed between P and Q will be P3Q2.
Topic: Atomic Structure, Physical Chemistry, A Level Chemistry, Singapore
Please SUBSCRIBE to my channel and SHARE this video with your friends if you find it helpful!
View the full video with description at my website https://chemistryguru.com.sg/det-group-from-successive-IE
Looking for more FREE A Level Chemistry videos? Check out our huge collection of video lessons at https://chemistryguru.com.sg/a-level-chemistry-video-lessons
- published: 04 Jan 2022
- views: 9568
2:31
Worked example: Identifying an element from successive ionization energies | Khan Academy
Keep going! Check out the next lesson and practice what you’re learning:
https://www.khanacademy.org/science/ap-chemistry-beta/x2eef969c74e0d802:atomic-structur...
Keep going! Check out the next lesson and practice what you’re learning:
https://www.khanacademy.org/science/ap-chemistry-beta/x2eef969c74e0d802:atomic-structure-and-properties/x2eef969c74e0d802:periodic-trends/v/electron-affinity
When electrons are removed in succession from an element, the transition from removing valence electrons to removing core electrons results in a large jump in ionization energy. By looking for this large jump in energy, we can determine how many valence electrons an element has, which in turn can help us identify the element. View more lessons or practice this subject at https://www.khanacademy.org/science/ap-chemistry-beta/x2eef969c74e0d802:atomic-structure-and-properties/x2eef969c74e0d802:periodic-trends/v/worked-example-identifying-element-from-successive-ionization-energies
Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help!
Donate or volunteer today! Donate here: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=desc
Volunteer here: https://www.khanacademy.org/contribute?utm_source=youtube&utm_medium=desc
https://wn.com/Worked_Example_Identifying_An_Element_From_Successive_Ionization_Energies_|_Khan_Academy
Keep going! Check out the next lesson and practice what you’re learning:
https://www.khanacademy.org/science/ap-chemistry-beta/x2eef969c74e0d802:atomic-structure-and-properties/x2eef969c74e0d802:periodic-trends/v/electron-affinity
When electrons are removed in succession from an element, the transition from removing valence electrons to removing core electrons results in a large jump in ionization energy. By looking for this large jump in energy, we can determine how many valence electrons an element has, which in turn can help us identify the element. View more lessons or practice this subject at https://www.khanacademy.org/science/ap-chemistry-beta/x2eef969c74e0d802:atomic-structure-and-properties/x2eef969c74e0d802:periodic-trends/v/worked-example-identifying-element-from-successive-ionization-energies
Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help!
Donate or volunteer today! Donate here: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=desc
Volunteer here: https://www.khanacademy.org/contribute?utm_source=youtube&utm_medium=desc
- published: 10 Sep 2019
- views: 106017
4:46
A Level Chemistry Revision "Trend in First Ionisation Energy Down a Group"
You can find all my A Level Chemistry videos fully indexed at https://www.freesciencelessons.co.uk/a-level-revision-videos/a-level-chemistry/
In this video, we...
You can find all my A Level Chemistry videos fully indexed at https://www.freesciencelessons.co.uk/a-level-revision-videos/a-level-chemistry/
In this video, we look at the trend in first ionisation energy down a group. We then look at how we can use successive ionisation energies to determine the group number of an element.
https://wn.com/A_Level_Chemistry_Revision_Trend_In_First_Ionisation_Energy_Down_A_Group
You can find all my A Level Chemistry videos fully indexed at https://www.freesciencelessons.co.uk/a-level-revision-videos/a-level-chemistry/
In this video, we look at the trend in first ionisation energy down a group. We then look at how we can use successive ionisation energies to determine the group number of an element.
- published: 31 Oct 2022
- views: 14481
2:33
Using ionisation energies to work out the identity of an element
How to work out which group and element is it from a table of ionisation energies
How to work out which group and element is it from a table of ionisation energies
https://wn.com/Using_Ionisation_Energies_To_Work_Out_The_Identity_Of_An_Element
How to work out which group and element is it from a table of ionisation energies
- published: 11 Apr 2013
- views: 48538
3:23
CHEMISTRY 101: Trends in Ionization Energies
In this tutorial video, we compare trends in the first ionization energy, second ionization energy, and third ionization energy for Na, Mg, and Si. Electron co...
In this tutorial video, we compare trends in the first ionization energy, second ionization energy, and third ionization energy for Na, Mg, and Si. Electron configurations are used to determine if a core electron or valance electron is being removed.
https://wn.com/Chemistry_101_Trends_In_Ionization_Energies
In this tutorial video, we compare trends in the first ionization energy, second ionization energy, and third ionization energy for Na, Mg, and Si. Electron configurations are used to determine if a core electron or valance electron is being removed.
- published: 22 Sep 2016
- views: 31873
2:26
The Powercube - Revolutionizing Green Energy with Neutrinovoltaic
Introducing the revolutionary #powercube - a cutting-edge technology that harnesses the power of vicinity to provide clean, renewable #energy with the help of ...
Introducing the revolutionary #powercube - a cutting-edge technology that harnesses the power of vicinity to provide clean, renewable #energy with the help of artificial intelligence.
Find out more: https://neutrino-energy.com/powercube-neutrinovoltaic/
https://wn.com/The_Powercube_Revolutionizing_Green_Energy_With_Neutrinovoltaic
Introducing the revolutionary #powercube - a cutting-edge technology that harnesses the power of vicinity to provide clean, renewable #energy with the help of artificial intelligence.
Find out more: https://neutrino-energy.com/powercube-neutrinovoltaic/
- published: 31 Dec 2022
- views: 481142
7:53
The Periodic Table: Atomic Radius, Ionization Energy, and Electronegativity
Why is the periodic table arranged the way it is? There are specific reasons, you know. Because of the way we organize the elements, there are special patterns ...
Why is the periodic table arranged the way it is? There are specific reasons, you know. Because of the way we organize the elements, there are special patterns that emerge. And you know how Professor Dave feels about patterns. He likes them.
Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem
More AP Chemistry review materials from me: bit.ly/URPDave
Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem
Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem
Biology Tutorials: http://bit.ly/ProfDaveBio
Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1
Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2
Mathematics Tutorials: http://bit.ly/ProfDaveMaths
EMAIL► ProfessorDaveExplains@gmail.com
PATREON► http://patreon.com/ProfessorDaveExplains
Check out "Is This Wi-Fi Organic?", my book on disarming pseudoscience!
Amazon: https://amzn.to/2HtNpVH
Bookshop: https://bit.ly/39cKADM
Barnes and Noble: https://bit.ly/3pUjmrn
Book Depository: http://bit.ly/3aOVDlT
https://wn.com/The_Periodic_Table_Atomic_Radius,_Ionization_Energy,_And_Electronegativity
Why is the periodic table arranged the way it is? There are specific reasons, you know. Because of the way we organize the elements, there are special patterns that emerge. And you know how Professor Dave feels about patterns. He likes them.
Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem
More AP Chemistry review materials from me: bit.ly/URPDave
Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem
Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem
Biology Tutorials: http://bit.ly/ProfDaveBio
Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1
Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2
Mathematics Tutorials: http://bit.ly/ProfDaveMaths
EMAIL► ProfessorDaveExplains@gmail.com
PATREON► http://patreon.com/ProfessorDaveExplains
Check out "Is This Wi-Fi Organic?", my book on disarming pseudoscience!
Amazon: https://amzn.to/2HtNpVH
Bookshop: https://bit.ly/39cKADM
Barnes and Noble: https://bit.ly/3pUjmrn
Book Depository: http://bit.ly/3aOVDlT
- published: 03 Sep 2015
- views: 3536125
51:07
Systems Group Seminar: "Fine-Grained Energy Attribution for Multi-Tenancy" (extended talk+live demo)
• Presented by Hongyu Hè at ETH Zurich
• Joined work with Michal Friedman and Theodoros Rekatsinas
• Code: https://github.com/HongyuHe/energat
• Paper: https:/...
• Presented by Hongyu Hè at ETH Zurich
• Joined work with Michal Friedman and Theodoros Rekatsinas
• Code: https://github.com/HongyuHe/energat
• Paper: https://hongyu.nl/papers/2023_hotcarbon_energat.pdf
• Slides: https://hongyu.nl/archive/sys_seminar_energat_slides.pdf
Abstract:
Due to the end of Dennard scaling, performance gains from hardware (HW) miniaturization come with higher power density. Consequently, computing incurs 2–4% of world-wide emissions, on par with the entire aviation industry's footprint. This footprint is predicted to double in the next decade, undermining the objective of sustainable computing. Increasing observability and user awareness is crucial, yet hindered by the absence of HW support and a standardized, software-centric method. Aiming to overcome this challenge, we argue that fine-grained energy attribution is achievable even with coarse HW support. In this talk, we introduce a thread-level, NUMA-aware energy attribution model that is effective and robust in multi-tenant environments. Additionally, we present potential future directions as well as our ongoing efforts to help ML applications improve energy efficiency.
00:00 Intro
00:23 Context
01:20 Overview
02:30 Growing Environmental Footprints of Computing
04:10 What’s wrong with pursuing best performance?
07:00 Fine-Grained Software Energy Attribution
07:35 Challenges
09:26 Gaps in Existing Work: Coarse-grained models
11:10 Challenges ++: Coarse hardware support
12:20 Proposal
12:30 Our Fine-Grained Method
13:15 NUMA-Aware Thread-Level Model for Multi-Tenancy
14:10 High-Level Intuition
16:15 Fine-Grained CPU Energy Attribution
17:55 Per-Workload CPU Energy Credit
24:35 Evaluation Setup
26:25 Model Validation
31:19 Energy Credit In-Situ
35:00 Comparing with Prior Work
42:49 Live Demo 🙏
47:13 Towards Energy-Aware Heterogeneous Clouds
49:25 Choosing the ‘Best’ Configuration for ML Training
50:48 Summary
#energyefficiency #sustainability #computerscience
https://wn.com/Systems_Group_Seminar_Fine_Grained_Energy_Attribution_For_Multi_Tenancy_(Extended_Talk_Live_Demo)
• Presented by Hongyu Hè at ETH Zurich
• Joined work with Michal Friedman and Theodoros Rekatsinas
• Code: https://github.com/HongyuHe/energat
• Paper: https://hongyu.nl/papers/2023_hotcarbon_energat.pdf
• Slides: https://hongyu.nl/archive/sys_seminar_energat_slides.pdf
Abstract:
Due to the end of Dennard scaling, performance gains from hardware (HW) miniaturization come with higher power density. Consequently, computing incurs 2–4% of world-wide emissions, on par with the entire aviation industry's footprint. This footprint is predicted to double in the next decade, undermining the objective of sustainable computing. Increasing observability and user awareness is crucial, yet hindered by the absence of HW support and a standardized, software-centric method. Aiming to overcome this challenge, we argue that fine-grained energy attribution is achievable even with coarse HW support. In this talk, we introduce a thread-level, NUMA-aware energy attribution model that is effective and robust in multi-tenant environments. Additionally, we present potential future directions as well as our ongoing efforts to help ML applications improve energy efficiency.
00:00 Intro
00:23 Context
01:20 Overview
02:30 Growing Environmental Footprints of Computing
04:10 What’s wrong with pursuing best performance?
07:00 Fine-Grained Software Energy Attribution
07:35 Challenges
09:26 Gaps in Existing Work: Coarse-grained models
11:10 Challenges ++: Coarse hardware support
12:20 Proposal
12:30 Our Fine-Grained Method
13:15 NUMA-Aware Thread-Level Model for Multi-Tenancy
14:10 High-Level Intuition
16:15 Fine-Grained CPU Energy Attribution
17:55 Per-Workload CPU Energy Credit
24:35 Evaluation Setup
26:25 Model Validation
31:19 Energy Credit In-Situ
35:00 Comparing with Prior Work
42:49 Live Demo 🙏
47:13 Towards Energy-Aware Heterogeneous Clouds
49:25 Choosing the ‘Best’ Configuration for ML Training
50:48 Summary
#energyefficiency #sustainability #computerscience
- published: 20 Oct 2023
- views: 61
1:14
Welcome to Chevron Renewable Energy Group
Since 1995 Chevron Renewable Energy Group has led with its pioneering spirit as a front-runner in innovation and a positive force for good. Learn how you can jo...
Since 1995 Chevron Renewable Energy Group has led with its pioneering spirit as a front-runner in innovation and a positive force for good. Learn how you can join our journey to lead the transformation to renewable fuels and find new ways forward
https://wn.com/Welcome_To_Chevron_Renewable_Energy_Group
Since 1995 Chevron Renewable Energy Group has led with its pioneering spirit as a front-runner in innovation and a positive force for good. Learn how you can join our journey to lead the transformation to renewable fuels and find new ways forward
- published: 15 Dec 2022
- views: 1203