thanks. it looks very interesting. all of your videos are great, i have to do a flashcard assignment for my midterm grade in IB Chemistry HL senior year with all of these assessment statements and when i found these, i was overjoyed!
The most reactive element will react to become stable. Becoming stable means filling the valence shell. Filling the valence shell (normally) means becoming an ion!
As the group decends any electron added to the valence shell is going to be less attracted to the atom since: 1) the atomic radii is increasing and the electron will be added to a valence shell further away from the pull of the nucleus 2) There is increased shielding, also reducing the pull of the nucleus
This is probably four years too late, but I was just wondering... to my understanding, the influence of the effective nuclear charge and shielding only changes across periods? Because going down a group, shouldn't they all have the same amount of shielding relative to the amount of protons? For example, sodium has 11 protons, and 1 valence electron (being in group 1), and thus 10 shielding electrons, giving an effective nuclear charge of 1, as is with all the elements in Group 1. At least, this is what I understand, please correct me if I'm wrong. Thank you!
Why is it that the most reactive ends up as an ion? So does it basically snatch the electron away keeping the electron to itself, which therefore leaves the other to form a diatomic molecule?
when you say become an ion, does that mean it will always be negative ion right? as the non- metals or the halogens want to gain 1 electron to fill their outershell and become isoelectronic.. so the most reactive will always be a negative ion
I have noticed that you use the old numbering system for the groups 1-7 instead of the 1-18. I believe the iB system prefers the new one right? (Just checking) P.s You are a great tutor! Thanks!!
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thanks. it looks very interesting. all of your videos are great, i have to do a flashcard assignment for my midterm grade in IB Chemistry HL senior year with all of these assessment statements and when i found these, i was overjoyed!
Here it is, for any IB learners searching for a comment in 2020
Yay Feynman! He's my favorite physicist!
The most reactive element will react to become stable.
Becoming stable means filling the valence shell.
Filling the valence shell (normally) means becoming an ion!
As the group decends any electron added to the valence shell is going to be less attracted to the atom since:
1) the atomic radii is increasing and the electron will be added to a valence shell further away from the pull of the nucleus
2) There is increased shielding, also reducing the pull of the nucleus
This is probably four years too late, but I was just wondering... to my understanding, the influence of the effective nuclear charge and shielding only changes across periods? Because going down a group, shouldn't they all have the same amount of shielding relative to the amount of protons? For example, sodium has 11 protons, and 1 valence electron (being in group 1), and thus 10 shielding electrons, giving an effective nuclear charge of 1, as is with all the elements in Group 1. At least, this is what I understand, please correct me if I'm wrong. Thank you!
Hang on actually, I just realised, maybe do you mean the repulsion from other electrons already in that outer shell?
You have helped me so much thank you.!
De nada, say hi to Cameron!
Why is it that the most reactive ends up as an ion? So does it basically snatch the electron away keeping the electron to itself, which therefore leaves the other to form a diatomic molecule?
this channel is so awesome, why am i only finding this out .....
that is so creative! love it!!
why does halogen reactivity decrease down the group if you could explain in the IB terms please ?
I love how you have so much fun mamking these vidoes!! It makes me wanna have fun too in chem!! Thanks so much!! > ^
when you say become an ion, does that mean it will always be negative ion right? as the non- metals or the halogens want to gain 1 electron to fill their outershell and become isoelectronic.. so the most reactive will always be a negative ion
youre THE BESTTTTT
hallelujah you're amazing
"Could have been worse, could have been Francium" 🤣
You are amazing
Isnt sodium supposed to act more vigorously than potassium? Thats what it says in IB chemistry HL book.
Nope
No wayyyy
I have noticed that you use the old numbering system for the groups 1-7 instead of the 1-18. I believe the iB system prefers the new one right? (Just checking)
P.s You are a great tutor! Thanks!!
yup, when I update this one I will fix it - then the IB will change it back again!
what game is this?
Anyone hear the police sirens around 5:00 ?
read the comment in reply to FMS
garrys mod