Science Matter and chemical change

Question 1

anything that has mass and occupies space

Answer 1

Matter

Question 2

workplace hazardous materials information system

Answer 2

WHMIS

Question 3

property that describes the physical apperance and composition of a substance

Answer 3

Physical properties

Question 4

change in the apperance of stae of a substamcre that does not change the composite

Answer 4

Physical change

Question 5

despcription of how a substance interacts with other substances

Answer 5

chemical property

Question 6

change that results when 2 or more substances react to create a different substance or substances

Answer 6

chemical changes

Question 7

substance made of 1 kind of matter

Answer 7

pure substance

Question 8

pure substance that cannot be broken down into other substances

Answer 8

element

Question 9

a table in which elements are organized

Answer 9

periodic table

Question 10

chemical combonation of 2 or more elements

Answer 10

compound

Question 11

combination of pure substances

Answer 11

mixture

Question 12

ther smallest part of an element that represents that element

Answer 12

atom

Question 13

invisible negative charged particle

Answer 13

electron

Question 14

orbit of electrons around the nucleus of an atom

Answer 14

electron shells

Question 15

positively charged particle

Answer 15

proton

Question 16

neutral particle

Answer 16

neutron

Question 17

mass of 1 atom of an element calculated from the total # of prontons,neutrons and electrons of that atom

Answer 17

atomic mass

Question 18

horizontal row of elements in the periodic table

Answer 18

period

Question 19

vertical colum on the periodic table

Answer 19

group/families

Question 20

of protrons in the neucleus of 1 atom of an elemnent

Answer 20

atomic number

Question 21

the sum of # of protrons and neutrons in an atom

Answer 21

mass number

Question 22

shiny,malleable,ductile,element that can produce energy or heat

Answer 22

metal

Question 23

dull,brittle element that does not conduct

Answer 23

non-metal

Question 24

element that has both metalic and non-metalic properties

Answer 24

metalloid

Question 25

group of 1 elements in the periodic table not including hydrogen

Answer 25

alkali metals

Question 26

group 2 in the periodic table

Answer 26

alkaline earth-metals

Question 27

group 17 in the periodic table

Answer 27

hallogens

Question 28

group 18 in the periodic table

Answer 28

noble gases

Question 29

combination of symbols that represents a compound

Answer 29

chemical formula

Question 30

pure substance formed when at least 1 metal and 1 non-metal combine

Answer 30

ionic compound

Question 31

atom that has become eletrically charged because it has lost or gained electrons

Answer 31

ion

Question 32

group of atos acting as 1

Answer 32

polyatomic ion

Question 33

pure substance formed when non-metals combine

Answer 33

molecular ion