EASY
7th ICSE
IMPORTANT
Earn 100

Give examples of monoatomic, diatomic, triatomic and polyatomic elements.

Important Questions on Atomic Structure

EASY
7th ICSE
IMPORTANT
A polyatomic ion is a group of atoms of one element.
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7th ICSE
IMPORTANT
The valency of an element is always one fixed number.
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7th ICSE
IMPORTANT
Element in period 1 of the periodic table have a valency of 1.
EASY
7th ICSE
IMPORTANT

Write the names of the elements present in the following compound.

Water

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7th ICSE
IMPORTANT

Write the names of the elements present in the following compound.

Carbon dioxide

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7th ICSE
IMPORTANT

Write the names of the elements present in the following compound.

Ammonia

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7th ICSE
IMPORTANT

Write the names of the elements present in the following compound.

Methane

EASY
7th ICSE
IMPORTANT

Derive the molecular formulae of the following compound stepwise and give their atomicity.

iron(II) carbonate