Identify from following, the products of K-electron capture by the nucleus:

A. neutron

B. neutrino

C. positron

Answer is

Concept:

→ K-electron capture is a type of radioactive decay process in which an unstable atomic nucleus captures one of its own inner-shell electrons (usually a K-electron) and combines with a proton in the nucleus to form a neutron. This process results in a decrease in atomic number by one and no change in mass number.

Explanation:

→ The K-electron capture occurs when the binding energy of an electron in the K-shell is greater than the energy difference between the initial and final states of the nucleus.

→ When this condition is met, the electron can be captured by the nucleus and combines with a proton to form a neutron. The process is represented by the following equation:

p + e^- → n + ν

where p represents a proton, e- represents a K-shell electron, n represents a neutron, and ν represents an electron neutrino that is emitted during the process.

→ K-electron capture is a type of radioactive decay process in which an unstable nucleus captures one of its own inner-shell electrons (usually a K-electron) and combines with a proton in the nucleus to form a neutron. This process results in a decrease in atomic number by one and no change in mass number.

→ During K-electron capture, the nucleus emits a neutrino (ν) in order to conserve lepton number. Lepton number is a fundamental quantity in particle physics that is conserved in all interactions. The electron neutrino (ν_e) is the type of neutrino that is typically emitted during K-electron capture.

Conclusion:

The correct answer is A and B.