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Lithium, Sodium, Potassium Are All Metals that React with Water to Liberate Hydrogen Gas. is There Any Similarity in the Atoms of These Elements? - Science

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Lithium, sodium, potassium are all metals that react with water to liberate hydrogen gas. Is there any similarity in the atoms of these elements?

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Solution 1

Yes. The atoms of all the three elements lithium, sodium, and potassium have one electron in their outermost shells.

Solution 2

 Lithium, sodium and potassium are all metals which belong to group 1, and have 1 valence electron in their atoms. They all have the same electronic configuration. Therefore, each element shows similar chemical properties when reacting with water and liberates hydrogen gas.

Concept: Mendeleev’s Periodic Table
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APPEARS IN

NCERT Class 10 Science
Chapter 5 Periodic Classification of Elements
Q 4.1 | Page 90
Lakhmir Singh Class 10 Chemistry (Science)
Chapter 5 Periodic Classification Of Elements
Q 30.2 | Page 304
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