ionising radiation

Question 1

what are ions

Answer 1

charged atoms or molecules

Question 2

ats ionising radiation

Answer 2

the release of energy from the nucleus in called radiation

Question 3

whilst radiation can pass through matter what can it be with electrons

Answer 3

it can knock electrons out of atoms causing some of the atoms to become ions (a charged atom)

Question 4

what happens if ionising radiation happens in living cells

Answer 4

the genetic material of a cell is damaged and mat become cancerous

Question 5

what are forms of ionising radiation

Answer 5

ultraviolet and X-rays

Question 6

what can we use ionising radiation for

Answer 6

to kill cancer cells and harmful bacteria

Question 7

when is alpha radiation not dangerous, and why

Answer 7

if the radioactive source is outside the body because it cant pass through the skin to reach cells

Question 8

what can beta and gamma cells do to the skin

Answer 8

they will damage and penetrate the skin and cause damage to the cells

Question 9

when will alpha radiation damage cells

Answer 9

if the radiation source has been breathed in or swallowed

Question 10

whats the alphas radiation change in the nucleus? whats it charge, what particle is emitted? what stops it?

Answer 10

nucleus loses 2 protons and 2 neutrons,
+2,
2 protons and 2 neutrons
afew cm of air, tissue or paper

Question 11

whats the betas radiation change in the nucleus? whats it charge, what particle is emitted? what stops it?

Answer 11

a neutron in the nucleus changes to a proton,
-1
a electron is created in the nucleus and is instantly emitted
afew millimetres of aluminium or other metal

Question 12

whats the gammas radiation change in the nucleus? whats it charge, what particle is emitted? what stops it?

Answer 12

none, 0, energy is given out its called electromagnetic radiation, lead and thick concrete will reduce intensity