The electronic configuration of an element is given below.

Element 1: 1s22s22p4

Which statement about the reactivity of the element is true?

A. It is reactive because it has to gain an electron to have a full outermost energy level.

B. It is unreactive because it has to lose an electron to have a full outermost energy level.

C. It is reactive because it has to gain two electrons to have a full outermost energy level.

D. It is unreactive because it has to gain two electrons to have a full outermost energy level.

Question

Keely Casey

Chemistry

18 June, 18:35

The electronic configuration of an element is given below.

Element 1: 1s22s22p4

Which statement about the reactivity of the element is true?

A. It is reactive because it has to gain an electron to have a full outermost energy level.

B. It is unreactive because it has to lose an electron to have a full outermost energy level.

C. It is reactive because it has to gain two electrons to have a full outermost energy level.

D. It is unreactive because it has to gain two electrons to have a full outermost energy level.

+3

Answers (1)

Know the Answer?

Rylie Foley · Answer 1

C. It is reactive because it must gain two electrons to have a full outermost energy level.

Step-by-step explanation:

The electron configuration of this element ends in 2s²2p⁴.

A filled energy level would end in 2s²2p⁶.

The element will be reactive, because it must gain electrons to have a full energy level, and it needs two more electrons to do this.