Question

The mass no and atomic no of an isotope of uranium are 235 and 92 respectively.Calculate the no of protons,electrons and neutron of the atom

Answer 1

Uranium

♂atomic number = Z = 92.

♂mass number = A = 235.

♀No.of protons = z = 92.

♀No.of electrons = No.of protons = 92.

♀No.of neutrons = A - Z

= 235 - 92 = 143.