Question

how many neutrons are in boron if it has a mass of 10 and and 5 protons

Explanation:

Step1: Recall the formula

The formula for calculating the number of neutrons is \( \text{Number of neutrons}=\text{Mass number}-\text{Number of protons} \).

Step2: Substitute the values

Given that the mass number \( A = 10 \) and the number of protons \( Z=5 \). Substitute these values into the formula: \( N=A - Z \).
So, \( N = 10-5 \).

Step3: Calculate the result

\( 10 - 5=5 \).

Answer:

5