EASY
9th CBSE
IMPORTANT
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Which element has two shells each one of which is completely filled with electrons according to the 2n2 rule?

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Important Questions on Structure of Atom

EASY
9th CBSE
IMPORTANT
Secondary Chemistry>Chapter 4 - Structure of Atom>Multiple Choice Questions (MCQ)>Q 23
Which element has the electronic configuration 2, 8, 6?
EASY
9th CBSE
IMPORTANT
Secondary Chemistry>Chapter 4 - Structure of Atom>Multiple Choice Questions (MCQ)>Q 24
Which element has a total of three shells and there are four electrons in its valence shell? 
 
EASY
9th CBSE
IMPORTANT
Secondary Chemistry>Chapter 4 - Structure of Atom>Multiple Choice Questions (MCQ)>Q 25
The atom of which element has one electron, one proton and no neutron?
MEDIUM
9th CBSE
IMPORTANT
Secondary Chemistry>Chapter 4 - Structure of Atom>Multiple Choice Questions (MCQ)>Q 26
The atom of which element has twice as many electrons in its second shell as in the first shell?