Find (i) the total number of neutrons (ii) the total mass of neutrons in 7mg of `""^(14)C` (Assume the mass of a neutron = mass of a hydrogen atom)

Explanation

To solve the problem, we need to find the total number of neutrons and the total mass of neutrons in 7 mg of Carbon-14 (C-14). Here are the steps to arrive at the solution:

### Step 1: Convert mass from mg to g
Given mass of C-14 = 7 mg.
To convert mg to g:
\[ 7 \text{ mg} = 0.007 \text{ g} \]
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