Question

sodium and alumunium have atomic numbet 11 and 13 respectively they are separated by 1 element in the periodic table and have valencies of 1 and 3 respectively.Chlorind and potassium are also separated by q element in the periodic table and yet both have the valency of one.Explain the difference
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Answer 1

Explanation:

when preparing dilutite sulpheric acid in a laboratery acid is slowly slowly to WATER with

Answer 2

Answer:

sodium has 1 valence electrons so, valence is 1

aluminium has 3 valence electrons so,valence is 3

potassium has 1 valence electrons so valence is 1

and 3 respectively clrine and potassium is also separated