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Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425

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Chapter
Section
BuyFindarrow_forward

Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425
Textbook Problem

Based on their location in the periodic table, give the symbols for three elements that would be expected to form positive ions in their reactions.

Interpretation Introduction

Interpretation:

The symbols for three elements should be identified that form positive ions in their chemical reactions.

Concept Introduction.png: In the periodic table; elements which are placed at the left most side are metals. The metallic elements have tendency to lose electrons. They are placed at the left most side of the periodic table. Due to presence of 1, 2, 3 electrons in their valence shell, they tend to lose electrons and get the Noble gas configuration.

Explanation

The metals are electropositive in nature thus they can give their outermost electrons to form positive ions or cation.

Sodium metal has one valence electron thus, it can for + 1 charge after the reaction. Sodium metal reacts with oxygen to form sodium oxide as follows:

4 Na + O22 Na2O

Here, Na exist as Na+ ion in Na2 O

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