Properties Of Alpha, Beta And Gamma Radiation

Question 1

Nature of alpha radiation

Answer 1

2 protons and 2 neutrons (helium nucleus)

Question 2

Nature of beta radiation

Answer 2

Electron

Question 3

Nature of gamma radiation

Answer 3

Electromagnetic wave of very short wavelength

Question 4

Symbol for alpha radiation

Answer 4

4 4
He a
2 2

Question 5

Symbol for beta radiation

Answer 5

0
ß
-1

Question 6

Symbol for gamma radiation

Answer 6

y

Question 7

Mass of alpha radiation

Answer 7

4u

Question 8

Mass of beta radiation

Answer 8

0.00055u

Question 9

Mass of gamma radiation

Answer 9

0

Question 10

Penetration of alpha radiation

Answer 10

Stopped by paper, skin or a few cm of air

Question 11

Penetration of beta radiation

Answer 11

Stopped by 5mm of aluminium or 1m air

Question 12

Penetration of gamma radiation

Answer 12

Stopped by several cm of lead

Question 13

Are alpha particles affected by magnetic fields?

Answer 13

Yes

Question 14

Are beta particles affected by magnetic fields?

Answer 14

Yes

Question 15

Are gamma rays affected by magnetic fields?

Answer 15

No, because they are waves

Question 16

Ionising ability of alpha radiation

Answer 16

High

Question 17

Ionising ability of beta radiation

Answer 17

Medium

Question 18

Ionising ability of gamma

Answer 18

0

Question 19

Charge of alpha particles

Answer 19

+2

Question 20

Charge of beta particles

Answer 20

-1

Question 21

Charge of gamma rays

Answer 21

0