Element	No electrons	Electron configuration	What Period is this element in?	What is its highest Principle Quantum Number	What is the highest sub - shell	What Groups is the element in
H	1	1s1	1	1	s	1
He	2	1s2	1	1	s	2
Li	3	1s22s1	2	2	s	1
Be	4	1s22s2	2	2	s	2
B	5	1s22s22p1	2	2	p	3
C	6	1s22s22p2	2	2	p	4
N	7	1s22s22p3	2	2	p	5
O	8	1s22s22p4	2	2	p	6
F	9	1s22s22p5	2	2	p	7
Ne	10	1s22s22p6	2	2	p	8
Na	11	1s22s22p63s1	3	3	s	1
Mg	12	1s22s22p63s2	3	3	s	2
Al	13	1s22s22p63s23p1	3	3	p	3