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Chemistry In Focus

7th Edition
Tro + 1 other
Publisher: Cengage Learning,
ISBN: 9781337399692

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BuyFindarrow_forward

Chemistry In Focus

7th Edition
Tro + 1 other
Publisher: Cengage Learning,
ISBN: 9781337399692
Chapter 3, Problem 16E
Textbook Problem
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Determine the charge of each of the following:

a silver atom that has lost one electron

a bromine atom that has gained one electron

a chromium atom that has lost three electrons

Interpretation Introduction

Interpretation:

The charge of an ion derived from each of the given atom, is to be determined.

Concept Introduction:

An atomic ion is the ion made up of only one atom, with a positive or negative charge. When an atom loses one or more electrons, a positively charged ion is formed and it is known as a cation. When an atom gains one or more electrons, a negatively charged ion is formed and it is known as an anion. The capability of gaining or losing of electrons is based on the electronic configuration of the atom.

Explanation of Solution

a) A silver atom that has lost one electron

The atomic number of silver atom is 47 and the electronic configuration of silver atom is [Kr] 4d10 5s1, which shows that it has one electron in its outermost orbital and it has ability to lose one electron to attain a fully filled electronic configuration from s-orbital.

Hence, silver atom loses one electron to form a positively charged Ag+1 ion.

b) A bromine atom that has gain one electron

The atomic number of bromine atom is 35 and the electronic configuration of bromine is  [Ar] 3d10 4

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Chemistry In Focus
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