Periodic Trends

Question 1

Which of the following compounds are ionic compounds? Check all of the boxes that apply.

Revolt · Accepted Answer

CaCl2; MgO; Na2O

Question 2

A calcium ion has a charge of

Revolt · Accepted Answer

+2.

Question 3

An aluminum ion has a charge of

Revolt · Accepted Answer

+3.

Question 4

A fluorine ion has a charge of

Revolt · Accepted Answer

-1.

Question 5

An oxygen ion has a charge of

Revolt · Accepted Answer

-2.

Question 6

Which elements form an ionic compound?Check all the boxes that apply.

Revolt · Accepted Answer

aluminum and oxygen; lithium and fluorine

Question 7

Use the periodic table to determine the charge of the ions below. Select the correct answer from the drop-down menus.A lithium ion has a charge of

Revolt · Accepted Answer

+1.

Periodic Trends Answers