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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? - CBSE Class 10 - Science

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Question

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

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.

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APPEARS IN

 NCERT Solution for Science Textbook for Class 10 (2019 to Current)
Chapter 5: Periodic Classification of Elements
Q: 4.1 | Page no. 90
 Lakhmir Singh Solution for Chemistry for Class 10 (2019 Exam) (2018 to Current)
Chapter 5: Periodic Classification Of Elements
Q: 30.2 | Page no. 304
Solution Lithium, Sodium, Potassium Are All Metals that React with Water to Liberate Hydrogen Gas. is There Any Similarity in the Atoms of These Elements? Concept: Mendeleev’s Periodic Table.
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