How many valence electron are present in the following elements: Hydrogen ,Lithium , Fluorine , carbon , Chlorine ,Helium ,Aluminium
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hydrogen-1
lithium-1
fluorine-7
carbon-4
chlorine-7
helium-no valance electron since it is nobel gas.
aluminium-3.
lithium-1
fluorine-7
carbon-4
chlorine-7
helium-no valance electron since it is nobel gas.
aluminium-3.
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