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Introductory Chemistry: A Foundati...

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

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BuyFindarrow_forward

Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425
Textbook Problem
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trong>Exercise 11.2 Write the complete electron configuration and the orbital diagram for each of the elements aluminum through argon. See Problems 11 . 49 through 11 . 54 .

Interpretation Introduction

Interpretation:

The complete electronic configuration and orbital diagram for each of the elements aluminium through argon should be written.

Concept Introduction:

The distribution of electrons in atom into orbitals is said to be electronic configuration. The electronic configuration for every element present in the periodic table is unique or different. Atomic number is equal to the number of protons, which is further equal to the number of electrons for neutral atom.

The electronic configuration is also denoted by the pictorial representations, known as orbital diagrams. Orbital diagram represents the pairing arrangement of electrons and individual orbitals. The filling of electrons in the orbital is done in the way; first the electrons are filled single in the orbital, after filling the single electron per orbital, if any electron is left in that energy level, then pairing of electrons occurs. Electrons are present with opposite spin in the orbital.

Explanation

In periodic table, the elements through aluminum to argon are arranged in period or row. As the atomic number of an element increases, the shells must contain an increasing number of electrons.

Now, the atomic number of aluminium = 13, thus number of electrons is also equal to 13.

Electronic configuration of aluminium = 1s22s22p63s23p1

Orbital diagram of aluminium:

            1s2       2s2           2p6            3s2       3p2

Atomic number of Silicon = 14, thus number of electrons is also equal to 14

Electronic configuration of silicon = 1s22s22p63s23p2

Orbital diagram of silicon:

            1s2       2s2           2p6            3s2       3p2

Atomic number of Phosphorus = 15, thus number of electrons is also equal to 15

Electronic configuration of phosphorus = 1s22s22p63s23p3

Orbital diagram of phosphorus:

            1s2       2s2           2p6            3s2       3p3

Atomic number of Sul

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