Chapter 20 Vocab Cards

Question 1

one that is composed of two elements.

Answer 1

binary compound

Question 2

the force that holds atoms together in a compound

Answer 2

chemical bond

Question 3

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

Answer 3

chemical formula

Question 4

the attraction that forms between atoms when they share electrons.

Answer 4

covalent bond

Question 5

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

Answer 5

hydrate

Question 6

charged particle that has either more or fewer electrons than protons.

Answer 6

ion

Question 7

attraction formed between oppositely charged ions in an ionic compound.

Answer 7

ionic bond

Question 8

molecule with a slightly positive end and a slightly negative end as a result of electrons being shared unequally.

Answer 8

polar molecule

Question 9

positively or negatively charged, covalently bonded group of atoms.

Answer 9

polyatomic ion