A radioactive element emits a particle from the nucleus of one of its atoms. The particle comprises two protons and two neutrons. The name of this process is called...?
(A) α-emission
(B) β-emission
(C) γ-emission
(D) Nuclear fission
α-emission
Comments
A radioactive element emits a particle from the nucleus of one of its atoms. The particle comprises two protons and two neutrons. The name of this process is called...?
Which scientist established that the various form of energy mechanical, electrical and heat are basically the same and can be changed from one form into another...?
(A) John Dalton
(B) William Thomson
(C) Albert Einstein
(D) James Prescott Joule
James Prescott Joule
Comments
Which scientist established that the various form of energy mechanical, electrical and heat are basically the same and can be changed from one form into another...?