gcse physics radiation

Question 1

what is alpha radiation made of?

Answer 1

2 protons and 2 neutrons

Question 2

what do alpha particles have the same structure as?

Answer 2

a helium nucleus

Question 3

what is an alpha particles positive charge?

Answer 3

2+

Question 4

how ionising are alpha particles?

Answer 4

strongly ionising

Question 5

what is the size of an atom?

Answer 5

1x10 to the power of 10 meters

Question 6

what is the range of an alpha particle?

Answer 6

only a few centremeters

Question 7

what can stop alpha particles?

Answer 7

paper

Question 8

can alpha particles pass through skin?

Answer 8

nope

Question 9

what is a beta particle ?

Answer 9

it is an electron emmitted from the nucleus

Question 10

what is a beta particles charge?

Answer 10

it has a charge of -1

Question 11

what is a beta particles range?

Answer 11

it has a range of a few meters

Question 12

what can stop beta particles?

Answer 12

thin aluminium can stop it

Question 13

is a beta particle ionising?

Answer 13

it is weakly ionising

Question 14

what is a positron?

Answer 14

a positive electron is emmited from the nucleus

Question 15

what is a positrons charge?

Answer 15

it has a +1 charge

Question 16

what does a positron do?

Answer 16

it completely annihilates immediately because positron is a type of antimatter

Question 17

what are gamma rays?

Answer 17

they are waves on the electromagnetic spectrum from the nucleus

Question 18

how fast do gamma rays travel?

Answer 18

they travel at the speed of light

Question 19

what is the charge and mass of gamma rays?

Answer 19

they have zero charge and zero mass

Question 20

how ionising are gamma rays?

Answer 20

they are very weakly ionising

Question 21

what are gamma waves range like?

Answer 21

they have a very long range in air

Question 22

what can stop gamma rays?

Answer 22

thick lead or several meters of concrete

Question 23

what is the most penatrating form of ion?

Answer 23

gamma