radiation

Question 1

what is alpha radiation?
ionising?
penetration?
stopped by?
range in air?

Answer 1

Alpha radiation α (a helium nuclei or loss of two protons and two neutrons) highly ionising, low penetration, stopped by paper, range in air 5 cm

Question 2

what is the alpha equation?

Answer 2

Alpha equations atomic mass decrease by 4, atomic number decrease by 2

Question 3

what is beta radiation?
ionising?
penetration?
stopped by?
range in air?

Answer 3

Beta radiation β (electron formed when a neutron turns into a proton) mid ionising
ability and mid penetration, stopped by aluminium, range in air 1 metre

Question 4

beta equation

Answer 4

Beta equations atomic mass no change atomic number increase by 1

Question 5

what is gamma radiation?
ionising?
penetration?
stopped by?
range in air?

Answer 5

Gamma radiation γ (EMS wave) low ionising ability, high penetration, stopped by
several inches of lead or metres of concrete, range in air unlimited

Question 6

what type of radiation is background radiation?

Answer 6

Background radiation is low-level radiation.

Question 7

what is contamination?

Answer 7

Contamination is the unwanted presence of materials containing radioactive atoms on other materials. The object is radioactive as long as the contaminant is in contact
with it.

Question 8

what is irradiation?

Answer 8

Irradiation is the process of exposing an object to nuclear radiation. It does not
cause the object to become radioactive.