radioactive stuff

Question 1

alpha decay

Answer 1

the emission of a helium nucleus

Question 2

alpha particles can be stopped by

Answer 2

can be stopped by skin or paper , but damage cells through charging

Question 3

beta decay

Answer 3

the emission of a high speed electron, at the same time a neutron changes into a proton

Question 4

gamma decay

Answer 4

the emission of a high energy photon (particle of light)

Question 5

gamma rays are highly ___but not highly ___ to cells

Answer 5

energetic, ionizing

Question 6

gamma rays do not effect the ____ nor the ___

Answer 6

mass or atomic #

Question 7

alpha largest ___ not very ___

Answer 7

particle, penetrating

Question 8

beta is stopped by _____ or _______

Answer 8

metal sheet r block of wood

Question 9

gamma has great____ power and is stopped by ______

Answer 9

penetrating, 30cm of lead

Question 10

alpha is stopped by a

Answer 10

hand

Question 11

beta is stopped by

Answer 11

allinuminum

Question 12

gamma is stopped by

Answer 12

lead

Question 13

has a charge of 0

Answer 13

gamma

Question 14

has a charge of 1+

Answer 14

beta

Question 15

has a charge of 2+

Answer 15

alpha particle 2 protons 2 neutrons

Question 16

is a helium nucleus

Answer 16

alpha

Question 17

is a high speed electron

Answer 17

beta

Question 18

is emitted from the nucleus

Answer 18

all of them

Question 19

is emmited only during beta decay

Answer 19

beta

Question 20

is emitted only during alpha decay

Answer 20

alpha

Question 21

is emitted only during gamma decay

Answer 21

gamma

Question 22

is affected by electric and magnetic fields

Answer 22

alpha and beta

Question 23

is not affected by electric and magnetic fields

Answer 23

gamma

Question 24

is high energy with small wavelengths

Answer 24

gamma

Question 25

is the highest energy form of electromagnetic radiation

Answer 25

gamma

Question 26

has low penetrating power can be stopped by a piece of paper

Answer 26

alpha

Question 27

has the greatest penetrating power can only be stopped by lead or concrete

Answer 27

gamma

Question 28

what is half-life

Answer 28

its the time that it takes for half of the original isotope to decay parent-daughter

Question 29

radiocarbon dating is only used for what

Answer 29

alive or was alive things living organisms

Question 30

when do you divide half-lives

Answer 30

when you're trying to find out how many lives have passed Ex., the substance has a half-life of 5 years. how many half lives will have passed after 20yrs/5 = 4yrs

Question 31

when do you multiply half-lives

Answer 31

finding total time or trying to reverse what you did by dividing Ex., Vanessa went under 3 half-lives. The half-life is 10 days. What is the total time? 10x3=30