spontaneous radiation

Question 1

how to be protected against: alpha, beta, gamma

Answer 1

alpha: skin/paper
beta: wood
gamma: block of Pb (lead)

Question 2

what is an alpha particle

Answer 2

positive, helium-4 nucleus

Question 3

what is a beta particle

Answer 3

negative, electron

Question 4

what is a gamma particle

Answer 4

neutral, high-energy photon

Question 5

alpha decay

Answer 5

4 2+
2 He (or α)

Question 6

beta decay

Answer 6

0 -
-1 e (or β)

Question 7

gamma emission (occurs with alpha or beta)

Answer 7

0
0 γ

Question 8

positron production

Answer 8

positive electrons
0
1 e (or β)

Question 9

electron capture

Answer 9

an element gains an electron and releases gamma
element + 0 –> 0 + daughter element
-1 e 0 γ

Question 10

artificial transmutations

Answer 10

how chadwick discovered the neutron
beryllium undergoes alpha decay –> releasing a neutron, carbon-12, and energy

Question 11

fusion

Question 12

fission

Answer 12

to split apart
- a big element gets split apart after being hit by a neutron, then releasing 3 more neutrons, energy, and the daughter elements