Covalent Compounds

Elements combine to form __________.

• compounds
• atoms
• positive ions
• negative ions

What part of an atom is involved in chemical bonding?

• protons
• neutrons
• electrons
• nucleus

A ________ is a model of an atom in which each dot represents a valence electron.

• Valence electron
• Electron dot diagram/Lewis dot structure
• Lewis bond structure

How many valence electrons does nitrogen have?

• 3
• 2

• 5
• 1

How many valence electrons does hydrogen have?

• 3
• 2
• 5
• 1

Compounds made from only nonmetals are _________________ compounds.

• ionic
• covalent
• metallic
• chemical

A covalent bond involves a __________ of electrons.

• sharing
• borrowing
• exchanging
• switching

A __________ is a number written to the right of a chemical symbol and slightly below it.

• subscript
• coefficient
• chemical formula
• compound

All nonmetals, except Hydrogen and Boron, need ______ valence electrons to become stable.

• 4

• 6

• 8

• 10

Name the following compound: N₂O₂

• Nitrogen oxide

• Nitrogen dioxide

• Dinitrogen dioxide

• Dinitrogen oxide