हिंदी

Which of the alkali metals given below has the smallest size?

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प्रश्न

Which of the alkali metals given below has the smallest size?

विकल्प

  • Rubidium

  • Potassium

  • Sodium

  • Lithium

MCQ
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उत्तर

Lithium

Explanation:

All the given elements belong to Group 1 of the periodic table, collectively known as the alkali metals. As you move vertically down a group in the periodic table, the atomic size | increases because each successive element gains an additional electron shell. Since lithium (Li) sits at the very top of Group 1 with only two electron shells, it retains the smallest atomic size among the options.

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अध्याय 1: Periodic Properties and Variations of Properties: Physical and Chemical - Exercises [पृष्ठ १७]

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फ्रैंक Chemistry Part 2 [English] Class 10 ICSE
अध्याय 1 Periodic Properties and Variations of Properties: Physical and Chemical
Exercises | Q 1. (h) | पृष्ठ १७
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