The mass of an ¹H atom is 1.007825 u, and a neutron has a mass of 1.008665 u. The atomic mass of ³¹P is 30.9738 u. What is the mass defect of this nuclide in u?

Question

Quizplus · Accepted Answer

To calculate the mass defect, we need to find the difference between the mass of the constituent particles (protons and neutrons) and the mass of the nucleus. Mass of constituent particles = (11 × 1.007825 u) + (13 × 1.008665 u) + (2 × 1.007825 u) = 30.974427 u Mass defect = Mass of constituent particles - Atomic mass = 30.974427 u - 30.9738 u = 0.000627 u Therefore, the mass defect of ³¹P is 0.2822 u.

The Mass of an 1H Atom Is 1

The Mass of an ¹H Atom Is 1