Radioactivity

Question 1

What is the relative mass and relative charge of a Proton?

Answer 1

Relative mass=1 Relative charge=1

Question 2

What is the relative mass and relative charge of a neutron?

Answer 2

Relative mass=1 Relative charge=0

Question 3

What is the relative mass and relative charge of an electron?

Answer 3

Relative mass=0.0005 Relative charge=-1

Question 4

What is an Ion?

Answer 4

An atom that has gained or lost an electron to form a charge

Question 5

Ionizing Radiation?

Answer 5

When forms of radiation collide with neutral atoms or molecules(1). This changes the structure by knocking off electrons(2). They leave behind ions called ionizing radiation.

Question 6

What can alpha penetrate and how far in the air?

Answer 6

Paper, skin, and air and a few cm

Question 7

What can beta penetrate and how far in the air?

Answer 7

Thin aluminum and around 1 meter.

Question 8

What can gamma penetrate and how far in the air?

Answer 8

Thick lead or concrete and a few kilometres

Question 9

Alpha radiation

Answer 9

Large and unpredictable and kicks out 2 protons and 2 neutrons

Question 10

Beta radiation

Answer 10

In small nuclei, a neutron changes into a proton, emitting an electron (beta particle) from the nucleus.

Question 11

Gamma radiation

Answer 11

After beta or alpha occured, the nucleus might have too much energy so energy removed in form of a gamma ray