Physical Science Nuclear Reactions

​How to read atomic notation

• Mass number Is always bigger than atomic number

• Atomic number is unique to each element (ID number)

• Mass number of element can change and without changing the element itself

Multiple Choice

What is the mass number of chlorine (Cl)

• 35

• 17

• 18

Multiple Choice

How many protons does gold have

• 197

• 118

• 79

• 276

3 types of radioactive decay

Alpha decay

Beta decay

Gamma decay​

Alpha decay is when an unstable nucleus releases an alpha particle

Beta decay is when an unstable nucleus releases an alpha particle

Multiple Choice

Alpha decay of $$\frac{208}{83}Bi$$  produces an atom with an atomic mass of?

• 212

• 204

• 81

• 85

Multiple Choice

The splitting of a nucleus into smaller nuclei is

• fusion

• fission

• half-life

• gamma radiation

Multiple Choice

Only nuclei with _________ atomic numbers can undergo fission.

• small

• even

• odd

• large

Multiple Choice

How is nuclear fusion different from nuclear fission?

• In fusion, the product is a larger atomic nucleus.

• Fission produces energy but fusion does not.

• Fusion produces energy but fission does not.

• In fission, the product is a larger atomic nucleus.

Multiple Choice

A high temperature is required for which to occur?

• alpha decay

• beta decay

• nuclear fission

• nuclear fusion

Multiple Choice

Uranium-238  decays into  Thorium-234  by emitting .........

• an alpha particle

• a beta particle

• gamma rays

• visible light

Multiple Choice

Which best represents nuclear fission?

• F

• G

• H

• J

Multiple Choice

Which of these diagrams represents the type of nuclear reaction that produces energy in the Sun?

• A

• B

• C

• D