Question

1. carbon - 14 has 6 protons. how many neutrons does it have?

Explanation:

Step1: Recall atomic - mass formula

The atomic mass number (A) is the sum of protons (p) and neutrons (n), i.e., $A=p + n$.

Step2: Identify values for A and p

For Carbon - 14, the atomic mass number $A = 14$ and the number of protons $p=6$.

Step3: Solve for n

We can rewrite the formula as $n=A - p$. Substituting the values, we get $n = 14-6$.
$n = 8$.

Answer:

8