Question
What is the mass number of nitrogen if the protons, electrons, and neutrons are all equal?
a
12
b
13
c
14
d
18
a
12
b
13
c
14
d
18
Answers
GPT-4o mini
The mass number of an element is the sum of its protons and neutrons. For nitrogen, the atomic number (number of protons) is 7. If protons, electrons, and neutrons are all equal in number, this means nitrogen would have:
- Protons = 7
- Neutrons = 7
- Electrons = 7
In this case, the mass number (protons + neutrons) would be:
\[
7 \, (\text{protons}) + 7 \, (\text{neutrons}) = 14
\]
Therefore, the correct answer is **c) 14**.
- Protons = 7
- Neutrons = 7
- Electrons = 7
In this case, the mass number (protons + neutrons) would be:
\[
7 \, (\text{protons}) + 7 \, (\text{neutrons}) = 14
\]
Therefore, the correct answer is **c) 14**.