Question
A) Magnesium's atomic number is 12, and its atomic mass is approximately 24. How many neutrons
does magnesium have? (2 points)
24
12
58
20
does magnesium have? (2 points)
24
12
58
20
Answers
GPT-4o mini
To find the number of neutrons in an atom, you can use the formula:
\[
\text{Number of Neutrons} = \text{Atomic Mass} - \text{Atomic Number}
\]
For magnesium (Mg):
- Atomic Mass ≈ 24
- Atomic Number = 12
Now, plug in the values:
\[
\text{Number of Neutrons} = 24 - 12 = 12
\]
Therefore, magnesium has **12 neutrons**.
However, since this was not one of the options given (24, 12, 58, 20), the closest correct response is **12**.
\[
\text{Number of Neutrons} = \text{Atomic Mass} - \text{Atomic Number}
\]
For magnesium (Mg):
- Atomic Mass ≈ 24
- Atomic Number = 12
Now, plug in the values:
\[
\text{Number of Neutrons} = 24 - 12 = 12
\]
Therefore, magnesium has **12 neutrons**.
However, since this was not one of the options given (24, 12, 58, 20), the closest correct response is **12**.