Question

What do you mean by chemical formula?
What is ion?
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Answer 1

A chemical formula is a symbolic representation of a chemical compound . It tells us about the type and number of atoms present in the compound.

An ion is an atom or group of atoms where the number of electrons is not equal to the number of protons. That means when a stable atom gains or loses an electron, it becomes an ion. Examples of ions are as follows: H+,Na+,Ca2+,F−,O2−.

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Answer 2

A chemical formula is a symbolic representation of a chemical compound . It tells us about the type and number of atoms present in the compound.

An ion is an atom or group of atoms where the number of electrons is not equal to the number of protons. That means when a stable atom gains or loses an electron, it becomes an ion.

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