Manganese Electron Configuration Concepts

This video tutorial explains how to write the electron configuration for manganese and its ions. It begins with an introduction to manganese on the periodic table, highlighting its 25 protons and electrons. The tutorial then provides a detailed walkthrough of writing the electron configuration, using orbital blocks and a periodic table chart. It covers the full electron configuration and the condensed notation using argon as a reference. Finally, the video explains how to adjust the electron configuration for manganese ions, specifically Mn2+, Mn3+, and Mn4+, by removing electrons from the 4s and 3d orbitals.

What is the atomic number of manganese?

• 26

• 27

• 25

• 24

How many electrons are present in a neutral manganese atom?

• 26

• 24

• 25

• 23

Which orbital block does manganese belong to in the periodic table?

• s-block

• p-block

• f-block

• d-block

What is the electron configuration of a neutral manganese atom?

• [Ar] 3d5 4s2

• [Ar] 3d6 4s1

• [Ar] 3d4 4s2

• [Ar] 3d5 4s1

Why is the 4s orbital written after the 3d in some electron configurations?

• Because it has higher energy

• To show the order of electron removal

• It is a mistake

• To simplify the notation

What is the condensed electron configuration notation for manganese?

• [Ne] 3s2 3p6 3d5 4s2

• [Ar] 3d5 4s2

• [Ar] 3d6 4s1

• [Kr] 4d5 5s2

Which noble gas is used in the condensed notation for manganese?

• Xenon

• Neon

• Argon

• Krypton

How many electrons are lost to form Mn2+ from a neutral manganese atom?

• 4

• 3

• 2

• 1

What is the electron configuration of Mn3+?

• [Ar] 3d4

• [Ar] 3d3

• [Ar] 3d6

• [Ar] 3d5

In forming Mn4+, how many electrons are removed from the 3d orbital?

• 4

• 2

• 3

• 1