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What is the common feature of the electronic configuration of the elements at the end of Period 2 and Period 3?

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Question

What is the common feature of the electronic configuration of the elements at the end of Period 2 and Period 3?

Answer in Brief
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Solution

The elements at the end of the period have 8 electrons in the valence shell.

Ne = 2, 8

Ar = 2, 8, 8

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Chapter 1: Periodic Table, Periodic Properties and Variations of Properties - lntext Questions [Page 11]

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S.P. Singh Concise Chemistry [English] Class 10 ICSE
Chapter 1 Periodic Table, Periodic Properties and Variations of Properties
lntext Questions | Q 19. (ii) | Page 11
Viraf J. Dalal Simplified ICSE Chemistry [English] Class 9
Chapter 5 The Periodic Table
Exercise | Q 3
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