test 1.

Question 1

matter

Answer 1

anything that had mass or has volume

Question 2

elements

Answer 2

a collection of atoms that all have the same number of protons

Question 3

periodic table

Answer 3

a table of the chemical elements

Question 4

the atomic number

Answer 4

is the number of protons in an atom

Question 5

electrons

Answer 5

are negatively charged subatomic particles orbiting the nucleus

Question 6

protons

Answer 6

are positively charged particles found in the nucleus of atoms

Question 7

neutrons

Answer 7

are subatomic particles with no charge found in the nucleus of an atom

Question 8

atomic mass

Answer 8

is determined by adding the protons and neutrons

Question 9

isotopes

Answer 9

one of several forms of an element

Question 10

atomic mass

Answer 10

the sum of the protons and neutrons in an atom

Question 11

molecule

Answer 11

chemicals that results when atoms are joined together chemically

Question 12

compound

Answer 12

a molecule that contains atoms of different elements

Question 13

ionic bond

Answer 13

a chemical bond formed when electrons are transferred from one atom to another

Question 14

ion

Answer 14

positively or negatively charged atom

Question 15

covalent bond

Answer 15

chemical bond formed by the sharing of electrons

Question 16

atomic theory

Answer 16

is the scientific theory that matter is made of atoms

Question 17

the properties of water

Answer 17

polar compound
hydrogen bond

Question 18

ion

Answer 18

positively or negatively charged atom

Question 19

covalent bond

Answer 19

isformed by the sharing of electrons