Answers

2015-01-20T19:26:57+05:30
1.H
2.N
3.Li
4.Na
5.Al
This is the atomic size of the elements
0
But as we go from left to right in any period, then the atomic size decreases as nuclear force increases between proton and electron. Then how Na is smaller then Al. As Al at left in 13th period and Na is at 1st group. :(
2015-01-20T20:00:04+05:30