4 protons and 5 neutrons

Nuclear Stability and Neutron/Proton Ratio - It has been found that the stability of nucleus depends upon its neutron to proton (n/p) ratio. A plot of N (the neutron number) against Z (atomic number or number of protons) show that for stable nuclide..

A neutron is a particle having a mass equal to 1.67 x 10 - 2 4 g (hydrogen atom) and no electrical charg..

Particle Electron Proton Neutron Symbol e p n Nature Negatively charged Positively charged Neutral Relative charge -1 +1 0 Absolute charge 1.6 x 10 -19 C 1.6 x 10 -19 C 0 Relative mass 1/1840 amu 1 amu 1 amu Absolute mass 9 x 10 ..

The proton has a mass equal to that of hydrogen atom, which is equal to 1.67 x 10 - 2 4 g or 1.0073 amu while it has an unit positive charge of +1.602 x 10 -19 ..

It has been found that the stability of nucleus depends upon its neutron to proton (n/p) ratio. A plot of N (the neutron number) against Z (atomic number or number of protons) show that for stable nuclides upto Z = 20, N = 20 i.e., the relationship ca..

Although Rutherford's model was enormously successful at explaining the scattering of alpha particles, there was a problem when the experimental data were used to calculate the mass of the nucleus. From the results of the scattering experiments, it was possible to calculate the charge on the ..

The Born Haber cycle can also be used to calculate the proton affinities (PA) of some bases. The proton affinity of a species X is defined as the energy released in the reaction: ..

Atoms and Nuclei..

Which one of the following represents four dollars and sixty-five cents? => $465 or $4.56 or $4.65 or $40.65..

Find the standard form of "seventy-five thousand, four hundred twenty-five". => 75,452 or 7,540 or 75,425 or 75,525..