Unit 2 Remediation

If I gain electrons I become

• Positive because I've added to my atom
• negative because I've added electrons
• same because i'm balanced
• equal because now I have electrons

A sodium ion has a charge of

• -1

• -2

• +1

• +2

In all covalent bonds, valence electrons are

• lost

• gained

• shared equally

• shared

A compound that contains one nitrogen atom and two oxygen atoms is named

• oxygen nitride

• dioxygen nitride

• nitrogen dioxide

• nitrogen monoxide

What is the chemical formula for the compound containing one nitrogen atom and two oxygen atoms?

• O₂N

• N₂O

• NO

• NO₂

The force of attraction that holds together atoms that share electrons is a(n) _____________ bond.

Any compound consisting of two or more nonmetals is a(n) _______________ compound

Chemical bonds always involve

• ions

• protons

• metals

• electrons

The correct name for the molecular formula CO is

• carbon monoxide

• carbon dioxide

• calcium oxide

• calcium dioxide

Which of the following pair of elements is most likely to form an ionic compound?

• Magnesium and fluorine

• Nitrogen and sulfur

• Oxygen and chlorine

• Sodium and aluminum