Periodic Table Test Review

Which of the following is not a cation?

• Sulfate

• Ammonium

• Al⁺³

• Copper (II) ion

Which element, when combined with bromine, would most likely form an ionic compound?

• Carbon

• Fluorine

• Sulfur

• Potassium

Which of the following compounds contains a chromium (II) ion?

• Cr₂SO₄

• Cr₂O

• CrNO₃

• CrCO₃

Anions

• lose electron(s) to form positively charged ions.

• lose electron(s) to form negatively charged ions.

• gain electron(s) to form positively charged ions.

• gain electron(s) to form negatively charged ions.

Ionic bonds mainly occur between

• one metallic and one nonmetallic element.

• two or more metallic elements.

• two or more nonmetallic elements.

• one metalloid and one metallic element.

The element calcium (Ca) bonds with a second element, represented by X, to form the compound CaX. Element X is a(n)

• chalcogen (group 16).

• halogen.

• Alkali metal.

• Alkaline Earth metal.

The element calcium (Ca) bonds with a second element, represented by X, to form the compound CaX₂. Element X is a(n)

• chalcogen (group 16).

• halogen.

• Alkali metal.

• Alkaline Earth metal.

An Alkali metal, represented by X, bonds with a chalcogen (group 16), represented by Q. What is the formula of the resulting compound?

• XQ

• X₂Q

• XQ₂

• X₂Q₃

What happens when a beryllium atom becomes a beryllium ion in a chemical reaction?

• Two electrons are lost

• Two electrons are gained

• One electron is gained

• One electron is lost

Which formula is incorrect?

• RbOH

• CaSO₄

• Al₂S₃

• Mg₁Cl₂