00:01
To identify each of the following elements, for a, largest atomic radius in group 1, so that would be the lowest of the bottom, so that's francium.
00:10
For b, smallest atomic radius in period 3, that would be the highest, so that would be scantium.
00:17
For c, largest first ionization energy in group 2, the trend for ionization energy increases going across.
00:25
So for, actually for group two, ionization energy increases going up.
00:35
So beryllium would have the largest first ionization energy in group two.
00:39
Most electronegative in group 16, electronegativity increases going up.
00:45
So that would be oxygen.
00:47
For e element in period two with no unpaired electron, no unpaired p electron would have to be neon...