Unit 25 Nuclear Chemistry

Unit 25 Nuclear Chemistry

Assessment

Assessment

Created by

Lan Vu

Chemistry

9th Grade - University

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1.

Multiple Choice

30 sec

1 pt

Alpha particles.....

a) are positively charged.

b) consist of two protons and four neutrons.

c) can penetrate any thickness of matter

d) All of the above 

2.

Multiple Choice

30 sec

1 pt

The process of nuclear change in an atom of radioactive material is called... 

nuclear decay

nuclear mass

isotopes

radon

3.

Multiple Choice

30 sec

1 pt

During beta decay, a nucleus .... 

gives up two protons and two neutrons.

  maintains the same number of protons and neutrons.

  loses a proton and gains a neutron.

gains a proton and loses a neutron. 

4.

Multiple Choice

30 sec

1 pt

When a nucleus undergoes nuclear decay by gamma rays, the atomic number of the element....

remains the same

  decreases by one.

increases by one.

increases by two.

5.

Multiple Choice

30 sec

1 pt

The process of the production of lighter nuclei from heavier nuclei is called

mass energy

magneticism

fusion

fission

6.

Multiple Choice

30 sec

1 pt

Radioactive materials have unstable...

electrons

protons

nuclei

neutrons

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