Electronic Configuration Quiz

Which shell corresponds to n=3 and what are its subshells?

• N shell with subshells 4s, 4p, 4d, and 4f

• M shell with subshells 3s, 3p, and 3d

• L shell with subshells 2s and 2p

• K shell with subshell 1s

How many electrons can the p subshell accommodate?

• 10 electrons

• 2 electrons

• 14 electrons

• 6 electrons

What is the electronic configuration of a carbon atom?

• 1s² 2s² 2p⁶

• 1s² 2s² 3s²

• 1s² 2p⁴

• 1s² 2s² 2p²

Why is carbon classified as a p-block element?

• Its valence electrons are in the d subshell

• Its valence electrons are in the p subshell

• Its valence electrons are in the s subshell

• Its valence electrons are in the f subshell

What is the atomic number of iron?

• 24

• 27

• 25

• 26

When configuring a positive ion, from which subshell are electrons removed first?

• The subshell with the most electrons

• The subshell with the least electrons

• The subshell with the highest energy

• The subshell with the lowest energy

What is the electronic configuration of a neutral iron atom?

• 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰

• 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁸

• 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁶

• 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁴

How many electrons does a fluorine ion have?

• 8 electrons

• 11 electrons

• 10 electrons

• 9 electrons

What is the electronic configuration of a fluorine ion?

• 1s² 2s² 3s²

• 1s² 2s² 2p⁶

• 1s² 2p⁶

• 1s² 2s² 2p⁵

Why is fluorine classified as a p-block element?

• Its valence electrons are in the s subshell

• Its valence electrons are in the p subshell

• Its valence electrons are in the d subshell

• Its valence electrons are in the f subshell