Last updated on August 29th, 2020 at 01:25 am
General Properties of Nucleus:
(i) Nuclear Size:
From Rutherford’s work, the mean radius of nucleus is and the radius of the atom is
. Thus the radius of the nucleus is 10,000 times smaller than the radius of the atom.
The empirical formula for the nuclear radius is,
Here, A is the mass number, is a constant.
From this formula the radius of the Carbon () nucleus is.
(ii) Nuclear Mass:
Where, is the mass of each proton and
is mass of each neutron. But,
Difference of the masses,
Δm is called the mass defect.
(iii) Nuclear Density:
Here, nuclear mass = , where A is the mass number and
is the mass of the nucleon =