Sulfate Ion Properties and Valence Electrons

The video tutorial explains how to determine the number of valence electrons in the sulfate ion (SO4 2-). It begins with an introduction to the concept of valence electrons and the sulfate ion. The tutorial then provides an overview of the periodic table, highlighting the number of valence electrons in different groups. The main focus is on calculating the total valence electrons for the sulfate ion by considering sulfur and oxygen atoms and the additional electrons from the 2- charge. The video concludes with a brief mention of resources for drawing Lewis structures.

What is the charge of the sulfate ion?

• 2+

• 2-

• 1+

• 1-

Which group in the periodic table contains elements with one valence electron?

• Group 1

• Group 2

• Group 13

• Group 18

How many valence electrons does sulfur have?

• 4

• 6

• 8

• 2

How many oxygen atoms are present in the sulfate ion?

• 5

• 3

• 2

• 4

What is the total number of valence electrons in the sulfate ion?

• 32

• 30

• 28

• 34

What is the effect of the 2- charge on the number of valence electrons in the sulfate ion?

• It adds two extra valence electrons.

• It has no effect.

• It removes two valence electrons.

• It adds one extra valence electron.

Where can you find additional help for drawing the Lewis structure of the sulfate ion?

• In the appendix

• In the textbook

• In the periodic table

• In the video description