EASY
Earn 100

What is the approximate size of a molecule?

Important Questions on Atoms and Molecules

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Science>Chemistry>Atoms and Molecules>Molecule

The smallest particle of a compound is _____.

MEDIUM
Science>Chemistry>Atoms and Molecules>Molecule
Complete the missing link.
1 u stands for _____ of mass of a carbon atom. 112th/ 114th
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Science>Chemistry>Atoms and Molecules>Molecule
_____ gases exist as individual atoms.
 
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Science>Chemistry>Atoms and Molecules>Molecule
Atoms: fundamental particle of an element :: _____: fundamental particles of a compound.
HARD
Science>Chemistry>Atoms and Molecules>Molecule
A molecule of an element includes only _____ kind of atoms. (two / one / three)
EASY
Science>Chemistry>Atoms and Molecules>Molecule
The number of atoms needed to make a molecule is called as _____ of that element.
HARD
Science>Chemistry>Atoms and Molecules>Molecule
If the formula of an element is X3, its atomicity is _____.
EASY
Science>Chemistry>Atoms and Molecules>Molecule
Name the most abundant element in the earth's crust _____.
MEDIUM
Science>Chemistry>Atoms and Molecules>Molecule
Complete the missing link.
If the atomic mass of silver is 108 u, then its molar mass is _____ g/mol.
EASY
Science>Chemistry>Atoms and Molecules>Molecule
Noble gases exist as individual _____.
MEDIUM
Science>Chemistry>Atoms and Molecules>Molecule
The relative atomic mass of a light element up to calcium is approximately _____ its atomic number.
MEDIUM
Science>Chemistry>Atoms and Molecules>Molecule
A molecule of a compound includes atoms of _____ or more kinds
EASY
Science>Chemistry>Atoms and Molecules>Molecule
The constituent elements of a _____ lose their own properties.
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Science>Chemistry>Atoms and Molecules>Molecule
A molecule containing more than three atoms are known as _____. (monoatomic/polyatomic)
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Science>Chemistry>Atoms and Molecules>Molecule

Complete the analogy:

Oxygen : element :: Carbon dioxide : _____.

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Science>Chemistry>Atoms and Molecules>Molecule
The atomicity of ozone is _____. (one / two / three / four)
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Science>Chemistry>Atoms and Molecules>Molecule
The number of atoms present in one molecule of a compound is called _____.
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Science>Chemistry>Atoms and Molecules>Molecule
The properties of compounds are different from its constituent _____.
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Science>Chemistry>Atoms and Molecules>Molecule
The constituents of a compound combine in_____ratio. (fixed / indefinite)
EASY
Science>Chemistry>Atoms and Molecules>Molecule
Helium and argon are _____ gases. (active/ noble)