Which of the following is a reasonable ground-state electron configuration?

A. 1s^2 2s^2 2p^6 3s^2

B. 1s^2 2s^2 2p^6 3s^2 3d^4

C. 1s^2 2s^2 2d^10 2p^3

D. 1s^2 2s^s 2p^3 2d^6

Question

Missie

Chemistry

29 May, 05:20

Which of the following is a reasonable ground-state electron configuration?

A. 1s^2 2s^2 2p^6 3s^2

B. 1s^2 2s^2 2p^6 3s^2 3d^4

C. 1s^2 2s^2 2d^10 2p^3

D. 1s^2 2s^s 2p^3 2d^6

+2

Answers (1)

Know the Answer?

Cordell Yoder · Answer 1

The answer to your question is: letter A.

Explanation:

To solve this question, we must consider the total number of electrons that can be placed in each orbital.

Orbital Number of electrons

s 2

p 6

d 10

f 14

Options given

A. 1s² 2s² 2p⁶ 3s² This electron configuration is correct because

is in agreement with the number of electrons

allowed in each orbital and the correct order

of them.

B. 1s² 2s² 2p⁶ 3s² 3d⁴ This electron configuration is incorrect because

3d⁴ goes after 3p.

C. 1s² 2s² 2d¹⁰ 2p³ This option is incorrect because 2d¹⁰ does not

exist.

D. 1s² 2s^s 2p³ 2d¹⁰ This option has 2 mistakes, s as a power does

not exist and 2d¹⁰ is also incorrect.

Which of the following is a reasonable ground-state electron configuration?A. 1s^2 2s^2 2p^6 3s^2B. 1s^2 2s^2 2p^6 3s^2 3d^4C. 1s^2 2s^2 2d^10 2p^3D. 1s^2 2s^s 2p^3 2d^6

Which of the following is a reasonable ground-state electron configuration?

A. 1s^2 2s^2 2p^6 3s^2

B. 1s^2 2s^2 2p^6 3s^2 3d^4

C. 1s^2 2s^2 2d^10 2p^3

D. 1s^2 2s^s 2p^3 2d^6