In a 1 gram  diamond crystal, a scientist wants to replace a few of the carbon atoms with nitrogen atoms. 

Which of the following statement(s) describe(s) the resulting material?

This is not possible as nitrogen has a coordination number of 3 and  carbon has a coordination number of 4.

The material can be characterized as n-type semiconductor.

The resulting material will be a defective diamond and is a p-type semiconductor.

The resulting material will be an electrical insulator like diamond.