Question
Magnesium - 25 would have 12 protons, 12 electrons and how many neutrons?
(1 point)
24
13
12
25
(1 point)
24
13
12
25
Answers
GPT-4o mini
To determine the number of neutrons in Magnesium-25 (Mg-25), we can use the formula:
\[
\text{Number of neutrons} = \text{Mass number} - \text{Number of protons}
\]
In this case, the mass number is 25 and the number of protons (which is also the atomic number for magnesium) is 12.
So, we calculate:
\[
\text{Number of neutrons} = 25 - 12 = 13
\]
Therefore, Magnesium-25 has **13 neutrons**.
\[
\text{Number of neutrons} = \text{Mass number} - \text{Number of protons}
\]
In this case, the mass number is 25 and the number of protons (which is also the atomic number for magnesium) is 12.
So, we calculate:
\[
\text{Number of neutrons} = 25 - 12 = 13
\]
Therefore, Magnesium-25 has **13 neutrons**.