00:01
Hi there.
00:02
In this question, it wants to know the charges of the ions that are formed from some specific groups here on the periodic table.
00:10
So we are looking at four different groups, a, b, c, and d.
00:16
Group a is designated as the first group here.
00:21
The alkali metals.
00:23
The alkali metals all end with an electron configuration that is s -1.
00:28
And they would all like to lose that electron so that they can become like the noble gas in the previous period of the periodic table.
00:37
If they lose that one electron, these ions will all form with a positive one charge.
00:46
Right, for letter b, we are looking at the group that contains oxygen.
00:55
Right, everything here ends with or has a valence shell configuration of s2p4.
01:04
We know that to be full, it needs to be s2p6...