Electron Affinity Trend, Basic Introduction, Chemistry
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- Опубліковано 26 вер 2017
- This chemistry video tutorial provides a basic introduction into electron affinity. it discusses the general trend of electron affinity as well as its many exceptions. Electron affinity is the energy change that occurs when a gaseous atom receives an electron. This video discusses which elements have electron affinity values that are endothermic and which ones are exothermic. Noble gases and alkaline earth metals are mostly endothermic. Halogens and chalcogens are mostly exothermic.
Ionization Energy:
• Ionization Energy - Ba...
Electron Affinity:
• Electron Affinity Tren...
Atomic Radius:
• Atomic Radius - Basic ...
Bond Energy & Bond Length:
• Bond Energy & Bond Len...
Electronegativity:
• Electronegativity, Bas...
Periodic Trends:
• Ionization Energy Elec...
__________________________________
Polar & Nonpolar Covalent Bonding:
• Polar Covalent Bonds a...
Bond Polarity & Dipole Moment:
• Bond Polarity, Electro...
Ionic Radius:
• Ionic Radius Trends, B...
Lattice Energy:
• Lattice Energy of Ioni...
Born Haber Cycle:
• Born Haber Cycle, Basi...
Bond Energy Calculations:
• Bond Energy Calculatio...
___________________________________
Lewis Structures - Mega Review:
• Lewis Structures, Intr...
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Professor Organic Chemistry Tutor, thank you for an exceptional Introduction into Electron Affinity Trend in AP/General Chemistry. Electron Affinity Trends has a solid impact on Endothermic and Exothermic processes in Modern Chemistry. Endothermic and Exothermic processes are very important in Thermodynamics.This is an error free video/lecture on UA-cam TV with the Organic Chemistry Tutor.
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what about the second, third, and fourth electrons of the carbon atom, will they require energy (endothermic) since they are going to be paired electrons?
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what will we do if asking about the atom that is expected to have a positive electron affanity? urgently pleaseeeeeeeeee
I noticed that the affinity of Arsenic is more exothermic than Phosphorus. Why is that so? Isn't usually when going down a group, the affinity decreases?
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Please make video on proton affinity
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what about if the elements are asked in the same column
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where do you get the negative numbers from each element?
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Teacher, its clear ,but why second electron affinity said to posative
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now I ACTUALLY know what electron affinity is. Thank you!
wbt enthalpy ???
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ok u said eletcron affinity of nitrogen is positive bc there are a pair of electrons in the orbital diagram, but why is it positive bc of that
Because you need to ADD energy to it for it to accept a new electron because, with two electrons in the same cloud, there's gonna be more repulsion between them so it's gonna be harder for the new electron to integrate, which is why you need to invest energy
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Why the second electron affinity is greater than the first electron affinity?
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Between Be and N
which one is more likely to receive electron?
N, it's a non metal
Why energy is released when electrons are added?
When electrons are added to an atom, the increased negative charge puts stress on the electrons already there, causing energy to be released. When electrons are removed from an atom, that process requires energy to pull the electron away from the nucleus. Addition of an electron releases energy from the process.
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why is nitrogen endothermic but oxygen is not? both are adding electrons to orbitals that already have electrons.
I have just the same question :(
Nitrogen is partially filled,so it's stable
I thought energy is released when you lose an electron? so energy is released when you lose an electron and gain an electron too?
Is noble gases's electron affinity zero??
It is possitive the electon affinity of noble gases . That means they require energy (endothermic reaction occurs) in order to add to them another electron
Noble gases attain their octet rule that is of 8 valence electron which makes them highly stable. Since they are highly stable they don't indulge in any chemical bonding or lose or gain or share electrons
So their electron affinity is zero
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There are so many exceptions I can't understand ಥ ͜ʖಥ
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I will explain Electron Affinity in simple terms - i guarantee it is easy to understand
First understand Ionisation energy - it is the energy required to make an atom lose it's electron
So u need to kick out an electron from it's orbit - it won't happen on it's own - go give some energy to it.
The energy u gave or the energy required for removal of an electron is called ionisation energy. - EASY, nothing complicated
Now electron affinity is the straight opposite - yes it is the opp. Screw what google or Chat GPT is saying
U gave an energy to remove electron. So for the opposite case:
U will get an energy to add an electron. That is, the atom loses some of it's energy to attract electron nd hold it in it's place. Just the opposite.
The more the ionisation energy is required to remove an electron (like in the case of noble gases), the less they r going to easily lose an electron
For Electron affinity it is the opposite, the greater the energy is released or the more electron affinity it has, the faster it is going to attract electrons or greater the no. of electrons attracted.
That's it - Electron affinity explained in simple terms.
Now i am not sure it is completely correct in terms of advanced level of science. But for general understanding it is great way to visualise nd is correct.
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