In the nucleus of ₁₁Na²³, the number of protons, neutrons and electrons are

If the binding energy per nucleon in ₃Li⁷ and ₂He⁴ nuclei are respectively 5.60 MeV and 7.06 MeV, then the energy of proton in the reaction ₃Li⁷+ p → 2 ₂He⁴ is

The nuclei  ₆C¹³ and ₇N¹⁴ can be described as 

The nucleus ₆C¹² absorbs an energetic neutron and emits a beta particle ( β ).  The resulting nucleus is

The nucleus ₄₈Cd¹¹⁵, after two successive β-decay will give

The average binding energy of a nucleon inside an atomic nucleus is about 

The constituents of atomic nuclei are believed to be

A radioactive element has half-life period 800 yr. After 6400 yr what amount will remain?

The half-life of radium is 1600 yr.  The fraction of a sample of radium that would remain after  6400 yr is 

The binding energy  per nucleon is maximum in  case of