00:01
Problem five asks you to dissect the phrase or the sentence because oxygen wants a negative two charge.
00:08
The second electron affinity is more negative than the first.
00:13
So one thing to consider when dissecting this idea is that electron affinity is different from electronegativity.
00:21
So recall that electronegativity is the propensity for an atom to, attract electrons.
00:43
Electron affinity is the energy change associated with the addition of an electron to an atom or ion.
01:13
So because this is an energy change, the change can be either positive or negative.
01:19
Positive meaning that addition of an electron requires energy and negative meaning that addition of an electron releases energy.
01:29
So in general, there can be multiple electron affinities for each element.
01:37
So if we take element x and add an electron, we get a negative ion with a charge of negative one.
01:47
So this is the first electron affinity.
02:00
And then we can further add an electron to this anion giving us a negative two charged ion.
02:12
This is the second...
