Answers

2016-03-19T14:21:51+05:30
The element which have two electron in their valence shell are Beryllium, Magnesium and Calcium

As you go down the group metallic character Increases.
As you go down the Atom size Increases.
1 5 1
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2016-03-19T16:29:56+05:30
Element. K L M N
Beryllium.... 2 2 magnesium.. 2 8 2
calcium .. 2 8 8 2
mettalic character ..increases by as we move down the group.

...atomic size increases by going down the group.....
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