CBSE Class 9 Answered
What are the properties of electrons?
Asked by Topperlearning User | 30 Mar, 2016, 04:01: PM
Expert Answer
Properties of Electrons
- An electron, which is denoted as e-, is the fundamental particle with a negative charge.
- Its properties are independent of the gas in the discharge tube.
- The mass of an electron is negligible and its charge is -1.
- The mass of an electron is extremely small. It is of the mass of a hydrogen atom (9.108 × 10-28 g) and so its mass is considered almost negligible. (Hydrogen is an atom of the lowest mass). Since the mass of a hydrogen atom is 1 u, we can say that the relative mass of an electron is u.
- The absolute mass of an electron is 9 × 10-28 grams.
- Its charge is 1 unit negative charge, i.e. 1.602 × 10-19 coulombs.
- The tiny electrons revolve around the nucleus of the atom in specific orbits or shells.
Answered by | 30 Mar, 2016, 06:01: PM
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