Can anyone explain me the Basics of Chemistry. Explain its symbols, valency and atomic number. (Class-7th answer please so, that I can understand it properly)
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The symbols are the abriviations of the names of the elements , mostly having first one or two letters from their names. and some has Latin derivement too . For ex - Hydrogen - H
The no. of electrons atom loses or gains in order to complete it's electronic configuration is called as valency .
The no. of atoms present in the molecule of an atom is called atomic no.
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