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Question
Define the term Valence shell.
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Solution
The outermost shell of an atom is known as its valence shell.
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The outermost shell of an atom is known as............................
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Multiple Choice Questions
The outermost shell of an atom is known as
Tick the most appropriate answer.
How many times is a proton heavier than an electron?
- 1500
- 1800
- 1840
- none of these
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What do you mean by electron transition?
ANSWER IN DETAIL
Write a note on valence shell.
Compare a proton and a neutron in respect of mass and charge.
The particle not present in an ordinary hydrogen atom is :
Explain how the modern atomic theory contradicted Dalton’s atomic theory.
