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प्रश्न
Give a reason for the following:
Helium is chemical extremely unreactive.
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उत्तर
Helium has its outermost shell completely filled i.e. 2 electrons in K shell.
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संबंधित प्रश्न
If K and L shells of an atom are full, then what would be the total number of electrons in the atom?
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Select the correct answer from the answer in the bracket to complete the sentence.
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