unit 4 matter and properties

Question 1

came up with the law of multiple proportions, law of atomic theory

Answer 1

john dalton

Question 2

each element is made up of tiny, indivisible particles called atoms

Answer 2

dalton’s atomic theory

Question 3

in thompsons cathoid ray, the beam was negatively charged b/c if the end was turned __________ the beam changed directions

Answer 3

negative

Question 4

jj thomson discovered _____ with the cathoid ray tube

Answer 4

electrons

Question 5

a particle 7320 times the size of an electron w a charge of 2+

Answer 5

alpha particles

Question 6

thomson discovered the _______-

Answer 6

electrons with the cathoid ray tube

Question 7

who created the plum pudding model

Answer 7

jj thomson

Question 8

father of nuclear physics

Answer 8

ernest rutherford (nucleus)

Question 9

charge on an atom is _____–

Answer 9

neutral

Question 10

what elements are in the same family on the periodic table

Answer 10

vertically stacked

Question 11

which two particles have the same charge: proton, electron, neutron, atom

Answer 11

neutron and atom

Question 12

diatomic states (name all the elements)

Answer 12

HONClBrIF

Question 13

mass cannot be created or destroyed in a chemical reaction (name and who created it)

Answer 13

law of conservation of mass, dalton

Question 14

watre is always made of the same ratio of elements

Answer 14

definite proportions

Question 15

theory_______

Answer 15

explains

Question 16

law ________

Answer 16

states