Question

Find the group number and period number of Phosphorus​

Answer 1

Answer:

PHOSPHORUS

Group no: 15

Period no: 3

Explanation:

Answer 2

Tip- You can find the period number and group number of an element if you know its atomic number. The period number is linked to the valence electrons and is related to the number of electron occupied shells in the element.

The group number of phosphorous is 5 and period number is 3.

Explanation: In their highest-energy orbitals, Group 5A elements have five valence electrons ($ns^{2} np^{2}$). Nitrogen, phosphorus, and arsenic can form ionic compounds by acquiring three electrons, resulting in the nitride ($N^{3-}$), phosphide ($P^{3-}$), and arsenide ($As^{3-}$) anions, however covalent bonding is more common.