Answers

2015-11-20T06:50:43+05:30
Boron is the element.........
2 5 2
2015-11-20T12:49:43+05:30
If Z = 5
The name of the element is Boron
The atomic no. is 5
The no. electrons = 5
Electronic configuration = 2,3
So, the valency of the element, Boron is 3
1 5 1
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