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Earn 100

The Newlands' Law of Octaves was applicable only for elements up to magnesium.
(a)True
(b)False

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Important Questions on Periodicity
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Represent the union of two sets by Venn diagram for each of the following.
is a prime number between and
is an odd number between and

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Atomic mass of and that of . According to Dobereiner's triad rule, atomic mass of will be________
Round off your answer to the nearest integer.

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Dobereiner's law of triads is not applicable to

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The law where every element repeats properties.

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