ADV CHEM: Marking Period 2 Quarterly Review

What is the charge of a cation?

• positive

• negative

• neutral

What is the charge of an anion?

• positive

• negative

• neutral

Ions are formed when atoms lose or gain:

• hope

• protons

• neutrons

• electrons

Which of the following is a PURE substance? (Pure substance = same chemical composition throughout the substance, like an element or a compound)

• salt water

• fresh air

• soda

• sodium

What is the lowest whole-number ration of ions in an ionic compound known as?

• a molecule

• an atom

• an ion

• a formula unit

Molecular compounds are formed from:

• a metal and a nonmetal

• polyatomic ions

• nonmetals

• positive and negative ions

To form an ionic compound, fluorine would need to bond with:

• lithium

• carbon

• chlorine

• helium

Ionic compounds are composed of:

• positive and negative ions

• transition metals

• molecules

• nonmetals

What is the charge (oxidation number) of an element from group 17?

• 0

• -1

• +1

• +2

What is the charge of an ion from group 2?

• 0

• -1

• +1

• +2