What is the Absolute Mass and Charge of an Electron?

What is the absolute mass and charge of an electron?

One Line Answer

The absolute mass of an electron is approximately 9.108 × 10^–28.
Its absolute charge is 1.6 × 10^–19 C.

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Chapter 4: Structure of the Atom - Very Short Answer Type Questions [Page 192]

Chapter 4 Structure of the Atom
Very Short Answer Type Questions | Q 29 | Page 192

What is the nature of the charge on Cathode rays .

Which sub-atomic particle was discovered by Chadwick.

What are inert elements?

Choose the correct option

The number of valence electrons in O^2- is :

Give a simple diagram to show the arrangement of the electrons in an atom of sulphur.

What is the relation between the number of protons and the number of electrons in an atom?

Cathode rays are made up of

Rutherford’s ‘alpha (α) particles scattering experiment’ resulted in to discovery of

Helium has two electrons in the outermost orbit and so it is chemically inert.

Assertion: Helium has four electrons in the outermost orbit.
Reason: Neon has eight electrons in the outermost orbit.