Question

An atom has electronic configurations 2, 8, 7.

To which of the following elements would it be chemically similar? (Atomic numbers are given in parentheses.)

Options

• N(7)

• F(9)

• P(15)

• Ar(18)

Answer 1

F(9)

Explanation:

It would be chemically similar to F(9) with configuration as 2, 7.