Question

What is the expected mass (in kg) of a isotope?

1 proton = 1.6726 × 10-27 kg
1 neutron = 1.6749 × 10-27 kg

3.18 × 10-26 kg

3.18 × 1026 kg

4.69 × 10-26 kg

4.69 × 1026 kg

Answer 1

\[\frac{ 19 }{ 9 }F\]

Answer 2

Isotope of?

Answer 3

I put it right there