Sodium and sulphur are two elements in the third period in the periodic table.
(Atomic number Na-11, S-16)
a) Which one of them has the highest ionization energy?
b)Which one has the highest electronegative nature?
c) To which period does these elements belong?
Write down the electronic configuration of the element just above the sulfur in the same group of the periodic table.

Explanation

a) Sulphur
b) Sulphur
c) 3
d) 2,6