00:01
So now we're going to be 62 from chapter 8.
00:06
In this problem, we're asked to select from some pairs of elements, which one has the larger atomic radius.
00:15
So we can first identify the trend in the periodic table for atomic radius.
00:19
So we have our periodic table here.
00:26
We're going to have increasing size as we go down the periodic table and as we move to the right to the left on the periodic table.
00:42
So here we have the smallest elements, here we have the largest.
00:50
So first we can look at part a, where we have tin or silicone.
00:57
So 10 is much lower.
01:01
It's several periods below silicone.
01:04
So it's easy here to decide that 10 is the larger element.
01:10
In part b, we're given bromine or gallium...