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my quiz

Total questions: 20

Worksheet time: 30mins

Name
Class
Date
1.

What is the only difference between two different isotopes of the same element?

a)

Number of neutrons

b)

Number of protons

c)

Number of electrons

d)

Size of atom

2.

This is the symbol for a(n)

a)

Alpha particle

b)

Beta particle

c)

Gamma ray

3.
If the half-life of uranium-232 is 70 years, how many half-lives will it take for 10 g of it to be reduced to 1.25 g?
a)
1 half-life
b)
2 half-lives
c)
3 half-lives
d)
4 half-lives
4.
After the third half-life, how much of the sample is left?
a)
1/2
b)
1/3
c)
1/16
d)
1/8
5.
What is the half-life of iodine-131?
a)
32 days
b)
8 days
c)
16 days
d)
24 days
6.
How many neutrons does the isotope below have?     89 36Kr
a)
53
b)
36
c)
89
d)
125
7.
In a correctly written symbol what would be located in the "A" position?
a)
number of neutrons
b)
atomic number
c)
number of electrons 
d)
mass number
8.
How many protons does this isotope of titanium have?
a)
48
b)
22
c)
26
d)
70
9.

What is the Half Life of this isotope?

a)

3 days

b)

5 days

c)

8 days

d)

10 days

10.
What is Half-life?
a)
The amount of time it takes for some of the nuclei in a sample of the isotope to decay
b)
The amount of time it takes for half the electrons in a sample of the isotope to decay
c)
The amount of time it takes for half the nuclei in a sample of the isotope to decay
d)
the amount of time it takes to double the nuclei in a sample of the isotope to decay
11.

Radiosenstivity of tissue or organ is measured by

a)

Response to any effect

b)

Response to irradiation

c)

Response to deterministic effect

d)

Response to Stochastic effect

12.

Critical or target molecule

a)

RNA

b)

Compton effect

c)

DNA

d)

Other

13.

If an x-ray or some type of particle radiation interact with DNA molecule that considered

a)

Deterministic effect

b)

Direct effect

c)

Indirect effect

d)

Stochastic effect

14.

Primary mediator of the indirect effect on DNA

a)

Compton effect

b)

Free radicals

c)

Ions

d)

Electron

15.

Primary mediator of the indirect effect on DNA

a)

Compton effect

b)

Free radicals

c)

Ions

d)

Electron

16.

When x-ray interact with the water molecule before the DNA was involved this considered

a)

Direct effect

b)

Compton effect

c)

Indirect effect

d)

Photoelectric effect

17.

Operation in avalanche mode

a)

Proportional Counters

b)

Ionization chamber

c)

Geiger Counter

d)

Other

18.

An atom with the same number of protons and electrons ,but different number of neurons

a)

Alpha particle

b)

Half life

c)

Isotopes

d)

Beta particle

19.

Isotones

a)

Common number of electrons

b)

Common number of protons

c)

Common number of positron

d)

Common number of neutrons

20.

As low As Responsably Achievable

a)

Alpha

b)

Dose limitation

c)

AlARA