Question

Complete the following table:

	Symbol	Atomic No	Electronic Configuration
1.	He	2	______
2.	Ne	______	2,8
3.	Ar	______	2, 8,8
4.	Na	11	______

Answer 1

	Symbol	Atomic No	Electronic Configuration
1.	He	2	2
2.	Ne	10	2,8
3.	Ar	18	2, 8,8
4.	Na	11	2,8,1