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Electron is a particle having a...

Electron is a particle having a

A

negative charge of one unit and zero mass

B

positive charge of one unit and zero mass

C

negative charge of one unit and a mass of about `9.1 xx 10^(-31) kg`

D

negative charge of one unit and a mass of about `1.67 xx 10^(-27)kg`.

Text Solution

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The correct Answer is:
To answer the question "Electron is a particle having a...", we need to provide a detailed explanation of the properties of an electron. Here’s a step-by-step solution: ### Step 1: Definition of Electron An electron is a fundamental subatomic particle that carries a negative electric charge. **Hint:** Remember that electrons are one of the basic building blocks of atoms. ### Step 2: Charge of Electron The charge of an electron is -1 elementary charge, which is equivalent to approximately -1.602 x 10^-19 coulombs. **Hint:** Focus on the sign of the charge; it is negative. ### Step 3: Mass of Electron The mass of an electron is approximately 9.11 x 10^-31 kilograms. This is a very small mass compared to protons and neutrons. **Hint:** Note that the mass of an electron is significantly less than that of protons and neutrons. ### Step 4: Behavior of Electron Electrons exhibit both particle-like and wave-like properties, a concept known as wave-particle duality. **Hint:** Consider how electrons can behave differently under various experimental conditions. ### Step 5: Location in Atom Electrons are found in the electron cloud surrounding the nucleus of an atom, which contains protons and neutrons. **Hint:** Visualize the atom as having a nucleus at the center with electrons orbiting around it. ### Step 6: Summary of Properties To summarize, an electron has: - A negative charge of -1 unit. - A mass of approximately 9.11 x 10^-31 kg. - It behaves as both a particle and a wave. - It orbits the nucleus of an atom. **Hint:** Make a list of these properties for quick reference. ### Final Answer Therefore, the complete statement would be: "Electron is a particle having a negative charge of -1 unit and a mass of approximately 9.11 x 10^-31 kg."
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