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Introductory Chemistry: A Foundati...

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

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Section
BuyFindarrow_forward

Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425
Textbook Problem
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Write the full electron configuration ( 1 s 2 2 s 2 etc.) for each of the following elements.

>a. magnesium, Z=12

lithium, Z = 3

oxygen, Z = 8

sulfur, Z = 16

(a)
Interpretation Introduction

Interpretation:

To write the complete electronic configuration of magnesium.

Concept Introduction:

In an atom; electrons are placed in certain energy levels which are called as orbitals. Electrons always fill according to energy of these orbitals.

Explanation

The energy of orbitals increases as the number of principal energy levels increases. The sequence of orbitals for electronic configuration is as given below:

1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s

We have to follow the maximum number of electrons that can accommodate in each orbital.

  • s-orbital = 2 electrons.
  • p-orbital = 6 electrons.
  • d-orbital = 10 electrons...
(b)
Interpretation Introduction

Interpretation:

To write the electronic configuration of lithium.

Concept Introduction:

In an atom; electrons are placed in certain energy levels which are called as orbitals. Electrons always fill according to energy of these orbitals.

(c)
Interpretation Introduction

Interpretation:

To write the electronic configuration of oxygen.

Concept Introduction:

In an atom; electrons are placed in certain energy levels which are called as orbitals. Electrons always fill according to energy of these orbitals.

(d)
Interpretation Introduction

Interpretation:

To write the electronic configuration of sulfur.

Concept Introduction:

In an atom; electrons are placed in certain energy levels which are called as orbitals. Electrons always fill according to energy of these orbitals.

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