Radioactivity

Question 1

What particle exerts the electrostatic forces of repulsion

Answer 1

Protons

Question 2

What is strong nuclear force

Answer 2

Force of attraction that holds the nucleus together

Question 3

What is spontaneous transmutation

Answer 3

When an unstable nucleus becomes stable by chaning into a different element releasing a particle as it does so

Question 4

A radioactive atom emits radiation this can be claffied into two classes

Answer 4

Energy and particles

Question 5

When does beta minus decay happen

Answer 5

When an unstable atom has a relatively large number of neutrons, the neutron splits into a proton and an electron

Question 6

What is beta positive decay

Answer 6

Happens when an unstable atom has too many protons a proton in nucleus decays into a neutron and a postron

Question 7

what is gamma decay

Answer 7

This is when unstable atomic nuclei dissipate excess energy by spontaneously emitting gamma rays (typically after alpha and beta decay)