Question

Describe symobol, formula and Valency

Answer 1

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SYMOBOL: The symbol is an abbreviation of the name of an element. It consists of one or two letter of Enhlish or the Latin name of the element.

FORMULA: A formula represents a molecule of an element or a compound. It gives the number of atoms of the same or different elements present in a molecule.

VALENCY: The combining capacity of an element with other elements is called its valency.

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Answer 2

Symbol: this means the abbreviation of an element which consists of one or two letters of English alphabets.The element names are some in English and Latin.
For example,
Hydrogen:the symbol of this element is H
this is an English name of hydrogen.
Mercury: the symbol of this element is Hg.
this is written in English but the Latin name of Mercury is Hydrargyram.

Formula: this is the symbol or representation of a element that how many molecules are present in an element.
for example H2O.
this is the formula for water.
it contains 2molecules of hydrogen and 1molecules of oxygen.