Chemistry, asked by amitkashyap, 1 year ago

why Lithium with atomic number 3 and potassium number 9 are placed in group one?

Answers

Answered by amruthadeshpande
13
This is because Lithium and potassium have same physical and chemical properties, valency, outermost orbits' electronic configuration(ns1) and are called alkali metals.
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Answered by Anonymous
6

Bcz electronic configuration of lithium is 2,1 and that of potassium is 2,7. Both have valency=1 . Even both of them are alkali metals with same chemical properties

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