18. Nuclear Chemistry Flashcards

1
Q

What is meant by a”radioisotope”?

A

An atom with an unstable nucleus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Where does radioactive decay occur in an atom?

A

The nucleus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Why causes some nuclei to be unstable?

A

Incorrect proton:neutron ratio

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is the “band of stability”?

A

A region for elements where the p:n ratio is within stable limits

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is meant by “ionising radiation”?

A

Radiation with energy to knock electrons off atoms.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What are the 3 types of ionising radiation?

A

Alpha

Beta

Gamma

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What are the penetrative powers of radioisotopes?

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Deflection of radioisotopes in electric field

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Uses of radioisotopes

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Controlling paper / plastic / metal thickness using radioisotopes

A

Beta radiation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Detecting leaks in pipes using radioisotopes

A

Beta

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Radioisotopes in smoke detectors

A

Alpha (Americium 241)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Radioisotopes in food and medical equipment

A

Gamma

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is meant by “decay” of a nucleus?

A

The emission of 1 or more types of radiation to achieve a stable nucleus.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is half-life?

A

The time taken for half the nuclei in a given sample to decay.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Prediciting decay of nuclei.

A

There is no way of knowing which nuclei will decay only taht a certain number will in a given time

17
Q

What affects the half life of a particular radioisotope?

A

Nothing

  • not state
  • element or compound
  • not pressure
  • not ion or atom
18
Q

What is the nuclide notation for a proton?

A
19
Q

What is the nuclide notation for a neutron?

A
20
Q

What is the nuclide notation for an alpha particle?

A
21
Q

What is the nuclide notation for a beta particle?

A