Can you identify the element of third period whose successive I.P's are given below:

All elements in the third period have

Identify and name the element whose electronic configuration are given below : 2,8,7

Ionization energies of five elements of same period in kcal/mol are given below: Which element form stable unipositive ion?

Ionization energies of five elements of same period in kcal/mol are given below: Which element is a noble gas ?

Identify the shape whose net is given below.

How many elements are there in the third period ?