Quiz | Ionic Bonds and Compounds

1

Which group typically forms ions with a +2 charge?

Alkali metals

Alkali earth metals

Chalcogens

Halogens

2

Which of the following compounds would you expect to be ionic?

NH3

SF6

CaO

H2O

3

What is the formula of the compound formed between magnesium and nitrogen ions?

MgN

MgN2

Mg2N3

Mg3N2

4

Which one of the following compounds is chromium (III) oxide?

CrO3

Cr3O

Cr2O3

Cr3O2

5

What is the energy of the formation of O2- (g) starting from O (g)?

Coulomb energy of O2-

First electron affinity + second electron affinity of oxygen

Second electron affinity of oxygen

Second ionization of oxygen

6

How is generally the formation of ionic compounds?

Exothermic

Endothermic

It depends on the starting material

It depends on the reaction conditions

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