Question

Which of the following is true about an element that has an atomic numbers of 15
A.)Element belongs to group 5
B.)Element has a valency of 3
C.)Element is a non-metal
D.)Both [2] and [3]​

Answer 1

Explanation:

Atoms which are present in the same group of the periodic table will have same number of valence electrons. Hence Cl,I of group 17, Na,Ca group 1 and C,Ge group 14 have same valence electrons.