how many neutrons does the isotope n-14 have?\n6\n7\n8\n9

how many neutrons does the isotope n-14 have?\n6\n7\n8\n9
Answer
Explanation:
Step1: Recall atomic number of nitrogen
Nitrogen (N) has an atomic number of 7, which means it has 7 protons.
Step2: Use mass - number formula
The mass - number of N - 14 is 14. The formula for mass - number (A) is $A = p + n$, where $p$ is the number of protons and $n$ is the number of neutrons.
Step3: Solve for number of neutrons
We know $A = 14$ and $p=7$. Rearranging the formula $n=A - p$. Substituting the values, we get $n = 14 - 7=7$.
Answer:
B. 7