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) (a)   bond.

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