QQuestionPhysics
QuestionPhysics
"Which statement best describes an electron?
It has a smaller mass than a proton and a negative charge.
It has a smaller mass than a proton and a positive charge.
It has a greater mass than a proton and a negative charge.
It has a greater mass than a proton and a positive charge."
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Answer
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Step 1: Identify the correct statement about an electron.
An electron has a smaller mass than a proton and a negative charge. This is the correct description of an electron.
Step 2: Explain the reasoning behind the statement.
Electrons are fundamental particles that are negatively charged. They are one of the basic building blocks of matter, along with protons and neutrons. Electrons are much lighter than protons; the mass of an electron is approximately 1 / 1836 that of a proton. Therefore, the first statement is the correct one.
Final Answer
The statement "It has a smaller mass than a proton and a negative charge" best describes an electron.
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