Question

Rank the following particles, from largest to smallest in mass: alpha particle, beta particle, proton.

Answer 1

The best and most correct answer among the choices provided by your question is the fourth choice.

The correct arrangement of these particles from largest to smallest mass is: proton, alpha particle, beta particle.

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Answer 2

Answer:

alpha particle, proton, beta particle

Explanation:

Protons are fundamental sub-atomic particles present inside the nucleus of an atom. The mass of a proton is around  1 amu (atomic mass unit).

Alpha (α) and beta (β) particles are by products of radioactive decay. Alpha particles are essentially a composite of 2 protons and 2 neutrons similar to the He nucleus. Therefore, the have a mass of 4 amu

Beta particles are high energy particles which can either be electrons (negative charge) or positron (positive charge). They have a mass which is 1/2000th the mass of a proton.

Therefore, the mass from the largest to the smallest would be:

alpha > proton > beta