Question

State the valencies of the following metallic elements a) Potassium b) sodium c) calcium d) magnesium e)zinc f) Aluminium g) chromium ( write each symbol with the valency
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Answer 1

Answer:

ELEMENT     VALENCY   SYMBOL

Potassium  +1               K

Sodium            +1               Na

Calcium           +2              Ca

Magnesium      +2              Mg

Zinc                 +2              Zn

Aluminium       +3              Al

Chromium       +2              Cr

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