Consider aimimg a beam of free electrons to wards free atoms . When they scatter, an electron and a protons cannot combine be produced a H-atom,

Options

A. Because of energy conservation
B. Without simultaneously releasing energy in the form of radiation
C. Because of momentum conservation
D. Because of angular momentum conservation

Answer

A, B

Explanation

When beam of free electrons is aiming towards free protons. Then, they scatter but an electron and a proton cannot combine to produce a H-atom because of energy conservation and without simultaneously releasing in the form of radiation.