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Ne2 is the molecule of neon.

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Important Questions on Atoms and Molecules

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Atomicity of oxygen in ozone molecule is 
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Select the correct options from the following statements:

I. C612 and C614 are isobars of each other.

II. C612 reacts with O816 to form a product which contains ionic bonds.

III. Ca2040 and Ar1840 are isobars of each other.

IV. Ca2040 reacts with O816 to form a compound whose aqueous solution is known as lime water.

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Give two examples of molecules having three different kinds of atoms.
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Molecules of which element is made up of only one atom of that element?

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A molecule of oxygen consisting of two atoms of oxygen is known as?

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The number of atoms in CO32- is
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The simplest compounds, which are made up of two different elements are called ____________.
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State the number of atoms present in CO32-.
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Which of the following has the highest intermolecular force of attraction?
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Which of the following is a polyatomic molecule?

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 In the preparation of ozone we require _____ atoms of oxygen.

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Phosphorous is a ________ molecule.

HARD
Draw the vibratory motions of the carbon dioxide molecule.
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How many molecules are present in 9gof water?
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In a compound such as water, the ratio of the mass of hydrogen to the mass of oxygen is?
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A group of atoms carrying a charge is known as ___________.

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Which of the following is not correct regarding gases?
HARD
Hydrogen reacts with oxygen to form water (H2O). The ratio between masses of hydrogen and oxygen is _____.