Chemistry Chapter 1 Vocabulary

Question 1

Force that holds two atoms together.

Answer 1

chemical bond

Question 2

Combination of chemical symbols and numbers that indicates which elements and how many atoms of each element are present in a molecule.

Answer 2

chemical formula

Question 3

Pure substance that contains two or more elements.

Answer 3

compound

Question 4

Chemical bond formed when atoms share electrons.

Answer 4

covalent bond

Question 5

Area where negatively charged electrons, arranged in energy levels, travel around an atom’s nucleus.

Answer 5

electron cloud

Question 6

Chemical symbol for an element, surrounded by as many dots at there are electrons in its outer energy level.

Answer 6

electron dot diagram

Question 7

The different positions for an electron in an atom.

Answer 7

energy level

Question 8

Atom that is no longer neutral because it has gained or lost an electron.

Answer 8

ion

Question 9

Attraction that holds oppositely charged ions close together,

Answer 9

ionic bond

Question 10

Bond formed when metal atoms share their pooled electrons.

Answer 10

metallic bond

Question 11

Neutral particle formed when atoms share electrons.

Answer 11

molecule

Question 12

Bond resulting from the unequal sharing of electrons.

Answer 12

polar bond