chapter 11

Question 1

anything that has mass that takes up space

Answer 1

matter

Question 2

a small particle that is the building block of matter

Answer 2

atom

Question 3

matter with a composition that is always the same

Answer 3

substance

Question 4

a substance that consist of only one type of atom

Answer 4

element

Question 5

two or more atoms that are held together by covalent bonds and act like a unit

Answer 5

molecule

Question 6

a substance containing atoms two or more diffent elements chemically bonded together

Answer 6

compound

Question 7

matter that can vary in compostion

Answer 7

mixture

Question 8

a mixture in substances are not evenly mixed

Answer 8

heterogeneous mixture

Question 9

a mixture in which two or more substances are evenly mixed but not bonded together

Answer 9

homogeneous mixture

Question 10

the region in the center of an atom’s mass and positive charge is concentrated

Answer 10

nucleus

Question 11

a positively charge particle in the nucleus of the atom

Answer 11

proton

Question 12

a neutral particle in the nucleus of a atom

Answer 12

neutron

Question 13

a negatively change praticle that occuplys the space in an atom outside the nucleus

Answer 13

electron

Question 14

the region surrounding an atom’s nucleus where one or more are most likely are found

Answer 14

electron cloud

Question 15

the number of protruns in a atom of a element

Answer 15

atomic number

Question 16

atoms of the same element that have diffent numbers of nutrons

Answer 16

isotope

Question 17

an atom that’s is no longer neutral because it has gained or lost elctrons

Answer 17

ion