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Write scientific reason. Elements belonging to the same group have the same valency. - Science and Technology 1

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Answer in Brief

Write scientific reason.

Elements belonging to the same group have the same valency.

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Solution

  1. The valency of an element is determined by the number of valence electrons in the outermost shell of an atom of an element.
  2. All the elements in a group have the same number of valence electrons. Therefore, elements in the same group should have the same valency.
  3. For example, the elements of group I contain only one valence electron, the valency of elements of group I is one. Similarly for group II, the valency is two.
Concept: History of Periodic Table: Early Attempts at the Classification of Elements
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APPEARS IN

Balbharati Science and Technology Part 1 10th Standard SSC Maharashtra State Board
Chapter 2 Periodic Classification of Element
Q 7.4 | Page 29
SCERT Maharashtra Question Bank 10th Standard SSC Science and Technology 1 Maharashtra State Board 2021
Chapter 2 Periodic Classication of Element
Write scientific reasons | Q 11
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