GK
BIG BANG THEORY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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nucleus
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neutron
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proton
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electron
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Detailed explanation-1: -The nucleus of the atom that is positively charged was discovered by Rutherford alpha particle scattering experiment.
Detailed explanation-2: -This work led to Rutherford’s atomic model, in which a heavy nucleus of positive charge is surrounded by a cloud of light electrons. The nucleus is composed of positively charged protons and electrically neutral neutrons, each of which is approximately 1, 836 times as massive as the electron.
Detailed explanation-3: -The proton was discovered by Ernest Rutherford in the early 1900’s. During this period, his research resulted in a nuclear reaction which led to the first ‘splitting’ of the atom, where he discovered protons. He named his discovery “protons” based on the Greek word “protos” which means first.