Question

Element with electronic configuration 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 5s² 5p³ belongs to the following group of the periodic table.

Options

• 5th

• 15th

• 3rd

• 17th

Answer 1

15th

Explanation:

It has 5 electrons in its valence shell (ns², np³).

It belongs to the periodic table's 15th group.