Gallium Ion and Electron Configuration

This video tutorial explains how to write the electron configuration for gallium, both in its neutral state and as an ion. It begins by identifying gallium on the periodic table and noting its atomic number. The tutorial then provides a detailed walkthrough of writing the electron configuration for neutral gallium, using the periodic table to identify patterns. Finally, it explains how gallium forms an ion by losing valence electrons, resulting in a positive charge, and provides the electron configuration for the gallium ion.

What is the atomic number of gallium?

• 35

• 33

• 31

• 29

Which method is preferred for writing electron configurations?

• Using a computer program

• Using a chart

• Using a periodic table

• Using a calculator

How many electrons can the 'p' orbital hold?

• 8

• 4

• 2

• 6

What is the electron configuration for the 3d orbital in gallium?

• 3d10

• 3d12

• 3d8

• 3d5

Which electrons are typically lost when gallium forms chemical bonds?

• All electrons

• Core electrons

• Valence electrons

• Inner shell electrons

What is the charge of the gallium ion when it loses three electrons?

• 1+

• 2+

• 3+

• 4+

In the electron configuration of Ga3+, which orbital is empty?

• 4p

• 3p

• 3d

• 4s

What is the electron configuration notation for neutral gallium?

• 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p1

• 1s2 2s2 2p6 3s2 3p6 3d10 4p2

• 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p2

• 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p1

Which orbital is filled after 4s in the electron configuration of gallium?

• 3p

• 3d

• 4d

• 4p

What is the significance of valence electrons in chemical bonding?

• They are the innermost electrons

• They are not involved

• They are the core electrons

• They are the electrons lost or gained