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Question

Is Lithium an alkali metal?


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Solution

  • Group 1 elements are called alkali metals because their oxides and hydroxides form alkaline solutions on treatment with water.
  • The six alkali elements are as- Lithium(Li), Sodium(Na), Potassium(K), Rubidium(Rb), Cesium(Cs), Francium(Fr).
  • The outermost electronic configuration of alkali metal is ns1,
  • The alkali element is also called the s-block element because the last electron enters in s-orbital.
  • Lithium has an atomic number 3 and its electronic configuration is 1s22s1. So, it is an alkali metal.

Hence, Lithium is an alkali metal.


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