Find (i) total number of neutrons, and (II) the total mass of neutrons in 7 mg of `C""^(14)`(assume that mass of neutron=mass of a hydrogen atom)

Explanation

To solve the question, we need to find the total number of neutrons and the total mass of neutrons in 7 mg of Carbon-14 (C-14).

### Step 1: Determine the number of neutrons in Carbon-14
Carbon-14 has an atomic number of 6 (which means it has 6 protons) and a mass number of 14. The number of neutrons can be calculated using the formula:

\[ \text{Number of Neutrons} = \text{Mass Number} - \text{Atomic Number} \]
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