Chapter 20 Vocab

Question 1

Chemical Formula

Answer 1

Tells what elements a compound contains and the exact number of atoms of each element are in a unit of that compound

Question 2

Chemical Bond

Answer 2

The force that holds atoms together in a compound

Question 3

Ion

Answer 3

A charged particle because it now has either more or fewer electrons than protons

Question 4

Ionic Bond

Answer 4

The force of attraction between the opposite charges of the ions in an ionic compound

Question 5

Covalent Bond

Answer 5

The attraction that forms between atoms when they share electrons

Question 6

Polar Molecule

Answer 6

A molecule that has a slightly positive end and a slightly negative end, although the overall molecule is neutral

Question 7

Nonpolar Molecule

Answer 7

A molecule in which electrons are shared equally in bonds

Question 8

Oxidation Number

Answer 8

Positive or negative number that indicates how many electrons an atom has gained, lost, or shared to become stable

Question 9

Polyatomic Ion

Answer 9

A positively or negatively charged, covalently bonded group of atoms

Question 10

Hydrate

Answer 10

A compound that has water chemically attached to its ions and written into its chemical formula