Question: Which of the following particles has the least mass?
Options:
Proton
Neutron
Electron
Alpha particle
Correct Answer: Electron
Solution:
The electron has the least mass compared to protons and neutrons.
Which of the following particles has the least mass?
Practice Questions
Q1
Which of the following particles has the least mass?
Proton
Neutron
Electron
Alpha particle
Questions & Step-by-Step Solutions
Which of the following particles has the least mass?
Correct Answer: Electron
Step 1: Understand that particles like protons, neutrons, and electrons are the building blocks of atoms.
Step 2: Know that protons and neutrons are found in the nucleus of an atom and have a larger mass.
Step 3: Recognize that electrons are much smaller and orbit around the nucleus.
Step 4: Compare the masses: Protons have a mass of about 1 atomic mass unit (amu), neutrons also have about 1 amu, while electrons have a mass of about 0.0005 amu.
Step 5: Conclude that since electrons have a much smaller mass than protons and neutrons, they have the least mass.
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