Chap 2

Question 1

Matter

Answer 1

Any substance that occupies space and has mass

Question 2

Elements

Answer 2

Unique forms of matter with specific chemical and physical properties that cannot break down into smaller substances by ordinary chemical reactions.

Question 3

Cations

Answer 3

Positive ions that form by losing electrons

Question 4

Anions

Answer 4

Negative ions formed by gaining electrons

Question 5

Electron transfer

Answer 5

Movement of electrons from one element to another

Question 6

Reactants

Answer 6

Substances used in the beginning of a chemical reaction

Question 7

Product

Answer 7

Substances at the end of the reaction

Question 8

Valence shell

Answer 8

Outermost electron shell

Question 9

Molecules

Answer 9

2 or more atoms chemically bonded together

Question 10

Isotopes

Answer 10

Different forms of the same element that have the same amount of protons but different number of neutrons. Meaning they are equal in chemical properties but differ in atomic mass.

Question 11

Radioisotopes

Answer 11

Radioactive isotopes. Unstable chemical element that releases radiation as it breaks down and becomes more stable.

Question 12

Balanced chemical equation

Answer 12

Each elements number of atoms is the same on each side of the equation

Question 13

Compounds

Answer 13

Contain atoms of more than one type of element