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Question
Name the following:
An element having valency 'zero'
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Solution 1
Helium
Solution 2
Element He, Ne, Ar i.e. Noble gases have ‘zero’ valency.
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Atomic No. |
|
A |
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|
B |
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|
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|
D |
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|
E |
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\[\ce{^31_15P}\]
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