Answer:
Because Rutherford's model was weak on the position of the electrons, Bohr focused on them. He hypothesized that electrons can move around the nucleus only at fixed distances from the nucleus based on the amount of energy they have. ... However, an electron could never exist in between two energy levels
Answer:
neutrons
Explanation:
Atomic number : It is defined as the number of electrons or number of protons present in a neutral atom.
Mass number is the number of the entities present in the nucleus which is the equal to the sum of the number of protons and electrons.
Mass number = Number of protons + Number of neutrons
Thus both C14 and C12 have same number of protons as they have same atomic number.
The difference in the mass number of both the isotopes is sue to the difference in the number of neutrons.
Atomic number = Number of protons = 6
For CC- 14, Number of neutrons = 14 - 6 = 8
For C 12, Number of neutrons = 12 - 6 = 6