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FORMATION OF HEAVY ELEMENTS

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

Which of the following is the most accepted theory about the formation of the universe that explains why it continues to expand?

a)

big bang theory

b)

steady state theory

c)

divine creation theory

d)

oscillating theory

2.

Which of the following is not considered as light elements?

a)

Helium

b)

Lithium

c)

Hydrogen

d)

Iron

3.

Which element is the lightest and at the same time the most abundant in outer space?

a)

Hydrogen

b)

Oxygen

c)

Helium

d)

Nitrogen

4.

How do heavier elements formed?

a)

Through combustion

b)

Through nuclear fusion

c)

Through nuclear fission

d)

Through nuclear synthesis

5.

Which phase of star life cycle is our sun?

a)

main sequence star

b)

red giant

c)

planetary nebula

d)

white dwarf

6.

In which stage do massive stars explode and release large amount of energy?

a)

main sequence

b)

super nova

c)

protostar

d)

white dwarf

7.

This happens when there is a slow rate of capturing neutron while there is a faster rate of radioactive decay hence increasing the proton by 1.

a)

R-Process

b)

S-Process

c)

CNO Cycle

d)

Proton-Proton Chain Reaction

8.

This happens in red giant star once they leave the stage of main sequence star. This is how three Helium-4 are converted into Carbon.

a)

Neutron Capture

b)

R-Process

c)

Triple Alpha Process

d)

CNO Cycle

9.

How many protons are there in Carbon - 12?

a)

12

b)

8

c)

2

d)

6

10.

What is the element name for the symbol He?

a)

Hydrogen

b)

Helium

c)

Oxygen

d)

Nitrogen