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Chapter 6, Problem 6.1P
Interpretation Introduction

Interpretation:

The ground-state electron configuration for the following ion should be determined:

Ni2+

Concept introduction: Electronic configuration represents the arrangement of electrons in different orbitals following the rules of filling of electrons in the atomic orbitals such as s orbital can have maximum of two electrons, p orbital can have maximum of 6 electrons and the maximum number of electrons in d and f orbitals are 10 and 14 respectively.

All the suborbital can have maximum of 2 electrons with opposite spins.

Expert Solution
Check Mark

Answer to Problem 6.1P

Solution: Ni:[Ar]3d84s2electron loses2 electronsNi2+:[Ar]3d8

Explanation of Solution

The cation Ni2+ is formed when parent atom Ni loses two electrons. Ni has an atomic number 28, that is, Ni atom has 28 electrons. The electrons configuration of Ni is as follows:

  Ni (28): [Ar]3d84 s2

Nickel loses its two 4s electrons to give Ni2+ with the Nickel configuration as follows:

  Ni:[Ar]3d84s2electron loses2 electronsNi2+:[Ar]3d8

(c)

Interpretation Introduction

Interpretation:

The ground-state electron configuration for the following ion should be determined:

N3-

Concept introduction: Electronic configuration represents the arrangement of electrons in different orbitals following the rules of filling of electrons in the atomic orbitals such as s orbital can have maximum of two electrons, p orbital can have maximum of 6 electrons and the maximum number of electrons in d and f orbitals are 10 and 14 respectively.

All the suborbital can have maximum of 2 electrons with opposite spins.

Expert Solution
Check Mark

Answer to Problem 6.1P

Solution:

  N:1s22s22p3electron gains+3 electronsN31s22s22p6 or Ne

Explanation of Solution

The anion N3- is formed when parent atom nitrogen gains three electrons. N has an atomic number 7, that is, N atom has 7 electrons. The electrons configuration of N is as follows:

  N(7):1s22s22p3

Nitrogen gains 3 electrons to give N3- with the configuration as follows:

  N:1s22s22p3electron gains+3 electronsN31s22s22p6 or Ne

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Chapter 6 Solutions

Chemistry, Books a la Carte Edition and Modified Mastering Chemistry with Pearson eText & ValuePack Access Card (7th Edition)

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