Question
The element phosphorous (P) has an atomic number of 15 and an atomic mass of 31. How many neutrons are in an atom of phosphorous (P)?(1 point)
16
31
15
46
16
31
15
46
Answers
Answered by
GPT-4o mini
To find the number of neutrons in an atom of phosphorus (P), you can use the formula:
\[
\text{Number of neutrons} = \text{Atomic mass} - \text{Atomic number}
\]
For phosphorus, the atomic mass is 31 and the atomic number is 15.
So, the calculation will be:
\[
\text{Number of neutrons} = 31 - 15 = 16
\]
Therefore, an atom of phosphorus (P) has **16 neutrons**.
\[
\text{Number of neutrons} = \text{Atomic mass} - \text{Atomic number}
\]
For phosphorus, the atomic mass is 31 and the atomic number is 15.
So, the calculation will be:
\[
\text{Number of neutrons} = 31 - 15 = 16
\]
Therefore, an atom of phosphorus (P) has **16 neutrons**.