Question

Which particle is the lightest in the following:
(a)Electron.
(b) Proton.
(c) Neutron
(d) alpha-particles.​

Answer 1

Answer:

The electron is the lightest particle of the atom. It has a mass of 9.1×10−28 grams. Comparing this mass to that of the proton's at 1.6726×10−24 grams, an electron is nearly 0.0005 times the proton's mass.

Beta particles are high-energy, high-speed electrons or positrons emitted by certain types of radioactive nuclei. Hence, their mass will similar to that of the electron.

Explanation:

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Answer 2

Answer:

Hi dear

pls your answer is

(a)Electron