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
The atomic number of nitrogen (N) is 7, which means it has 7 protons.
Step2: Use mass - number formula
The mass - number of an isotope is the sum of protons and neutrons. For N - 14, the mass - number is 14. Let the number of neutrons be $n$. We know that mass - number = number of protons+number of neutrons. So, $14=7 + n$.
Step3: Solve for the number of neutrons
Subtract 7 from both sides of the equation: $n=14 - 7=7$.
Answer:
B. 7