how to calculate nuclidic mass of 3He when its binding energy is 0.76 MeV

To calculate the nuclidic mass of 3He based on its binding energy, you can use Einstein's mass-energy equivalence formula: E=mc^2. The binding energy is the energy required to completely separate the nucleons (protons and neutrons) that make up the nucleus.

To calculate the nuclidic mass (m) of 3He, you need to convert the binding energy (E) from MeV to Joules, and then divide it by the speed of light squared (c^2) in meters per second.

1. Convert the binding energy from MeV to Joules:
- 1 MeV = 1.6 x 10^-13 Joules
- So, the binding energy (E) in Joules = 0.76 MeV x 1.6 x 10^-13 J/MeV

2. Calculate the mass (m) using the formula E=mc^2:
- Rearrange the formula to solve for mass (m): m = E / c^2
- Substitute the binding energy (E) in Joules and the speed of light squared (c^2) in meters per second.

Finally, you will have the nuclidic mass (m) of 3He in kilograms.