Physics 4: Atomic Structure + Radiation

Question 1

What is an alpha particle made from

Answer 1

2 protons and 2 neutrons

Question 2

How is a beta particle formed?

Answer 2

Neutron turns into a proton and a high speed electron

Question 3

What is gamma radiation

Answer 3

Electromagnetic wave

It can happen after alpha or beta radiation

Question 4

What materials can stop alpha, beta and gamma

Answer 4

Alpha- paper
Beta- aluminum
Gamma- Lead

Question 5

In alpha decay what happens to the mass number of the atom

Answer 5

• 4

Question 6

In alpha decay, what happens to the atomic number

Answer 6

• 2

Question 7

In beta decay, what happens to the mass number

Answer 7

Stays the same

Question 8

In beta decay, what happens to the atomic number?

Answer 8

+ 1

Question 9

Why is radiation dangerous

Answer 9

Can cause cancer

Question 10

Precautions when working with radiation

Answer 10

Stay far away as possible
Wear gloves
Wear lead
Wear googles

Question 11

What is half life?

Answer 11

Time taken for a radioactive sample to half

Question 12

What can be used to measure radiation

Answer 12

Geiger Muller Tube (becquerel Bq)