A stable nucleus will decay, or emit, particles.

Question

True
False
Question 13
Video #4, Question #2

Match the particle to its description.

Column A
1.
Relatively large particle:
Relatively large particle
2.
This particle cannot penetrate very far into other materials:
This particle cannot penetrate very far into other materials
3.
Can be absorbed by a sheet of paper:
Can be absorbed by a sheet of paper
4.
Can penetrate other materials moderately:
Can penetrate other materials moderately
5.
Can be absorbed by a sheet of aluminum:
Can be absorbed by a sheet of aluminum
6.
Has no mass and a negative charge:
Has no mass and a negative charge
7.
Has no mass and no charge:
Has no mass and no charge
8.
Can be absorbed by lead:
Can be absorbed by lead
9.
Can travel long distances:
Can travel long distances
Column B
a.Alpha particle
b.Beta particle
c.Gamma particle

Answer 1

True: A stable nucleus will not decay, while an unstable nucleus will.

Matching the particles to their descriptions:

Column A

1. Relatively large particle: a. Alpha particle
2. This particle cannot penetrate very far into other materials: a. Alpha particle
3. Can be absorbed by a sheet of paper: a. Alpha particle
4. Can penetrate other materials moderately: b. Beta particle
5. Can be absorbed by a sheet of aluminum: b. Beta particle
6. Has no mass and a negative charge: b. Beta particle
7. Has no mass and no charge: c. Gamma particle
8. Can be absorbed by lead: c. Gamma particle
9. Can travel long distances: c. Gamma particle

So the correct matches are as follows:

• 1: a
• 2: a
• 3: a
• 4: b
• 5: b
• 6: b
• 7: c
• 8: c
• 9: c