Question

Which subatomic particle has the smallest mass? A) proton b) neutron c) electron d) nucleus

Answer 1

Answer:

Electron


Explanation:
Of the three subatomic particles, the electron has the smallest mass. The mass of an electron is 1/1840 of an atomic mass unit

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Answer 2

The correct response to the given question is option c: Electron.

• Subatomic particles are the particles that make up the atoms and are present inside them.
• The subatomic particles of any atom determine its mass.
• Atoms have electrons that are present outside of the nucleus in their atomic subshells, and neutrons and protons are both present inside the nucleus in the centre of the atom.
• The nucleus is incorrect since it contains both proton and neutron masses, which cannot be referred to as the smallest.
• Protons and neutrons have the same mass and are measured in the same atomic mass unit.
• The mass of an electron, on the other hand, is very little, about 1/1840 unified mass unit. This is negligible in comparison to the mass of the proton and neutron and is therefore ignored when determining atomic mass.
• Because of the small value of the electron, the atomic mass is determined using only the mass of the proton and neutron.
• Hence, the electron is the particle with the smallest mass inside the atom.