00:01
For this exercise, we're taking groups of elements and arranging them in order of increasing level of ionization energy.
00:11
And so looking at the periodic table, in general, as you move up the groups, so from 7 up towards 1, your ionization energy increases.
00:22
And also as you move left to right, the energy increases.
00:25
So if we're looking at this first group, we have tellarium, which is right here, selenium, or sulfur, and selenium.
00:37
And we're trying to put those into order.
00:39
So since affinity or ionization energy goes up as you move up the group, and if we're going from lowest to highest, we'd have telarium, then selenium, then.
00:56
Then sulfur...
