00:01
When referring to the periodic table to determine the number of valence electrons, as long as we have a representative element that is in groups 1 to 8a, those being the groups here, the first two and the last six, then their group number corresponds to their number of valence electrons, 1a, 2a, 3a, 4a, 5a, 6a, 7a, and then 8a.
00:43
So, where is nitrogen? nitrogen is found right here.
00:50
So it has five valence electrons.
00:57
And then we've got hydrogen right here.
01:02
So it has one valence electron.
01:09
And then we've got carbon right here with four valence electrons.
01:18
And then we've got sulfur down here.
01:23
Sulfur has six valence electrons.
01:29
And then the last one is xenon, which is all the way down here, which has eight valence electrons...