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प्रश्न
Multiple Choice Questions
The outermost shell of an atom is known as
पर्याय
valency
valence electrons
nucleus
valence shell
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उत्तर
valence shell
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संबंधित प्रश्न
Give the following a suitable word/phrase.
The smallest unit of an element which takes part in a chemical reaction.
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What are the two main parts of which an atom is made of?
Tick the most appropriate answer.
Which of the following scientists observed that cathode rays consists of negatively charged particles?
- John Dalton
- J J Thomson
- James Chadwick
- Democritus
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What do you mean by electron transition?
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What is the charge on a neutron ?
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What is the number of neutrons present in a potassium atom ?
Compare a proton and a neutron in respect of mass and charge.
State its one drawback of Rutherford’s atomic model.
Select the correct answer from the choice in the bracket to complete the sentence:
An element ‘X’ has six electrons in its outer or valence shell. Its valency is __________.
