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प्रश्न
Give the following a suitable word/phrase
The sub-atomic particle with negative charge and negligible mass.
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उत्तर
Electron- A sub-atomic particle with a negative charge and negligible mass.
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संबंधित प्रश्न
Fill in the blank
The outermost shell of an atom is known as............................
Write true or false for the following statement
The maximum number of electrons in the first shell can be 8.
Give the following a suitable word/phrase
Arrangement of electrons in the shells of an atom.
Multiple Choice Questions
The outermost shell of an atom is known as
FILL IN THE BLANK
Gases become good conductors of electricity under ........ (low/high) pressure and .............. (low/high) voltage electrical discharge.
Tick the most appropriate answer
β-particles are actually a stream of
- protons
- electrons
- neutrons
- none of these
WRITE SHORT ANSWER
Describe a discharge tube.
ANSWER IN DETAIL
Name the three subatomic particles. How are they different from each other ?
Compare an electron, a proton and a neutron in respect of their relative masses and charges.
State how electrons are distributed in an atom. Explain in brief the rules which govern their distribution.
