4. Which hypothesis led to the discovery of the proton?

A. Cathode rays should be attracted to a positively-charged plate.

B. The nucleus of an atom should contain neutrons.

C. When a neutral hydrogen atom loses an electron, a positively-charged

particle should remain.

D. A proton should be 1840 times heavier than an electron.

Question

Imani Smith

Chemistry

28 October, 02:41

4. Which hypothesis led to the discovery of the proton?

A. Cathode rays should be attracted to a positively-charged plate.

B. The nucleus of an atom should contain neutrons.

C. When a neutral hydrogen atom loses an electron, a positively-charged

particle should remain.

D. A proton should be 1840 times heavier than an electron.

+1

Answers (1)

Know the Answer?

Raul Carter · Answer 1

Option C. When a neutral hydrogen atom loses an electron, a positively-charged.

Explanation: When a neutral hydrogen atom loses an electron a positively charged particle must remain. Proton is a positive charge of + 1 e charge with a mass that is slightly less than that of a neutron. Ernest Rutherford discovered that a atom must have a concentrated positive charge at the center that contains most of the atom's mass. He stated that the nucleus contained a positive charge the proton. And the weight of a proton is 1837 times heavier than the weight of the electron.

Result: Losing of an electron by hydrogen lefts a positive charge i. e proton.