00:01
All right.
00:03
So in this question, we have this list of elements.
00:07
We have to arrange them in increasing order of phase ionization energy.
00:12
So ionization energy is required to remove an electron from the violent shell of an atom.
00:19
Right.
00:20
So if it require more energy, then agonization energy will be higher.
00:25
Right.
00:26
Now, the first list, a, this list, they are all in the same group.
00:33
Group 6a, right? and down the group, ionization energy decreases because of decrease in effective nuclear charge.
00:49
Right.
00:49
So if that is the case, sulfa is on top.
00:53
So far will have the highest and delirium will have the lowest.
00:59
So that order will be led by selenium and then sulfur.
01:12
All right.
01:13
So we are saying that agonization energy decreases down the group...