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Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074

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BuyFindarrow_forward

Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
Textbook Problem

When oxygen and sulfur atoms become monatomic ions, how many electrons does each lose or gain? Which noble gas atom has the same number of electrons as an oxide ion? Which noble gas atom has the same number of electrons as a sulfide ion?

Interpretation Introduction

Interpretation:

For the oxygen and sulfur atoms, the loss or gain of electrons to form ions, the noble gas atom having the same number of electrons are needed to be determined.

Concept introduction:

The loss or gain of electrons from an atom forms monoatomic ion in order to achieve the stability (noble gas electronic configuration, etc.).

Oxygen has six electrons.

The charge of oxide ion (O2) is 2-.

Sulfur has sixteen electrons.

The charge of sulfide ion (S2) is 2-.

Explanation

The lose or gain of electrons from an atom forms monoatomic ion. Oxygen and sulfur atoms are highly electronegative atoms, so they gain electrons to form ions.

Therefore, both oxygen and sulfur atom gain two electrons so that they fulfil the octet rule or the noble gas electronic configuration.

Oxygen has six electrons.

The electronic configuration is,

    1s22s22p4

Oxygen gain two electrons to form oxide ion, the electronic configuration of O2 is,

    1s22s22p6Ne

This electronic configuration of oxide ion is same as that of Neon atom

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