Question

what are the rules for writing chemical symbol element​

Answer 1

Explanation:

Question:-what are the rules for writing chemical symbol element?

___________

Chemical formula is a symbolic representation of a molecule’s composition. It indicates –

(a) the elements that are present in the compound and

(b) the ratio of these elements in the compound.

A chemical formula is also called molecular formula. The symbols in the molecular formula tell us about the elements and the subscript tells us how many atoms of that element are present in one molecule.

For example, a molecule of water (H2O), consists of two hydrogen atoms and one oxygen atom. It is therefore represented by the chemical formula H2O. Lack of a subscript on the O indicates one atom of O per water molecule. Sodium chloride (common salt) contains equal number of sodium and chlorine atoms and is represented by the formula, NaCl. Sulphuric acid, H2SO4 contains three elements – hydrogen, oxygen and sulphur in ratio 2 : 4 : 1.

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Answer 2

If the chemical symbol has two letters the first letter is always capitalized and the second letter is written in lowercase

The first letter is always capitalized, while the second (and third, for unverified elements) is lowercase. H is the chemical symbol for hydrogen. C is the chemical symbol for carbon.