How can you calculate the valency of each element ?
The valency The valency is the number of the electrons that an atom gains , loses or even shares during a chemical reaction , The valency is the number of electrons that an atom needs...
Tagged: Group ( 1 A )
The general properties of the alkali metals in the modern periodic table
The alkali metals are located on the left side of the modern periodic table in group ( 1 ) or ( 1 A ) . They are the first group of s – block...
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