Question

Match the particle to its' description

column A

4 2 He

0 -1 e

y

is the same as a helium atom

is an electron

is pure energy

column B

gamma particle

beta particle

alpha particle

Answer 1

Here is the correct matching of the particles to their descriptions:

- **4 2 He** → **is the same as a helium atom** (alpha particle)
- **0 -1 e** → **is an electron** (beta particle)
- **y** → **is pure energy** (gamma particle)

So the final matches are:

- 4 2 He → alpha particle
- 0 -1 e → beta particle
- y → gamma particle

Answer 2

14
C
6

In the element above the mass number is and the atomic number is .

Blank 1:
Blank 2:

Answer 3

In the element notation \( \frac{14}{6}C \):

- The mass number (the number at the top) is **14**.
- The atomic number (the number at the bottom) is **6**.

So your answers would be:

**Blank 1:** 14
**Blank 2:** 6

Answer 4

Question 3


Which process occurs when two nuclei come together to form one bigger nucleus?

a
fission
b
fusion
c
radioactive decay

Question 4


Which process occurs when one nucleus splits to form two smaller nuclei?

a
fission
b
fusion
c
radioactive decay

Question 5


Scientists have been able to develop a nuclear fusion plant to generate energy.

True
False

Answer 5

Here are the answers to your questions:

**Question 3:**
Which process occurs when two nuclei come together to form one bigger nucleus?
**Answer:** b **fusion**

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**Question 4:**
Which process occurs when one nucleus splits to form two smaller nuclei?
**Answer:** a **fission**

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**Question 5:**
Scientists have been able to develop a nuclear fusion plant to generate energy.
**Answer:** False

While research is ongoing, as of now, there is no fully operational nuclear fusion plant that generates energy for widespread use.

Answer 6

Match the nuclear reaction to its description.


Forms two lighter nucleus

Forms one heavier nucleus

Answer 7

Here are the matches for the nuclear reactions to their descriptions:

- **Forms two lighter nuclei** → **Fission**
- **Forms one heavier nucleus** → **Fusion**

So your matches would be:

- **Fission** → Forms two lighter nuclei
- **Fusion** → Forms one heavier nucleus