Concept explainers
(a)
Interpretation:
The ground state configuration of silver atom has to be predicted.
Concept introduction:
Electronic configuration: The electron configuration is the distribution of electrons of an atom or molecule in atomic or molecular orbitals.
Electrons occupy the lowest energy orbitals. The increasing order of orbital energy is
The energy order of the orbital for the first three periods is as follows,
The orbital which is closer to the nucleus has lower energy; therefore the
In general, the orbitals can hold maximum of two electrons, the two electrons must have opposite spin.
The subshell ordering by Aufbau principle is given below,
(a)

Explanation of Solution
The electronic configuration is depends on the electrons in the atom. The silver atom has
The subshell ordering by Aufbau principle is given below;
Therefore ground state electronic configuration of silver atom is
Silver belongs to Period
The electronic configuration also can be written as follows,
(b)
Interpretation:
The ground state configuration of beryllium atom has to be predicted.
Concept introduction:
Refer to part (a).
(b)

Explanation of Solution
The electronic configuration is depends on the electrons in the atom. The beryllium atom has
The subshell ordering by Aufbau principle is given below;
Therefore ground state electronic configuration of beryllium atom is
Beryllium belongs to Period
The electronic configuration also can be written as follows,
(c)
Interpretation:
The ground state configuration of antimony atom has to be predicted.
Concept introduction:
Refer to part (a).
(c)

Explanation of Solution
The electronic configuration is depends on the electrons in the atom. The antimony atom has
The subshell ordering by Aufbau principle is given below;
Therefore ground state electronic configuration of antimony atom is
The electronic configuration also can be written as follows,
(d)
Interpretation:
The ground state configuration of gallium atom has to be predicted.
Concept introduction:
Refer to part (a).
(d)

Explanation of Solution
The electronic configuration is depends on the electrons in the atom. The gallium atom has
The subshell ordering by Aufbau principle is given below;
Therefore ground state electronic configuration of gallium atom is
Gallium belongs to Period
The electronic configuration also can be written as follows,
(e)
Interpretation:
The ground state configuration of tungsten atom has to be predicted.
Concept introduction:
Refer to part (a).
(e)

Explanation of Solution
The electronic configuration is depends on the electrons in the atom. The tungsten atom has
The subshell ordering by Aufbau principle is given below;
Therefore ground state electronic configuration of tungsten atom is
Tungsten belongs to Period
The electronic configuration also can be written as follows,
(f)
Interpretation:
The ground state configuration of iodine atom has to be predicted.
Concept introduction:
Refer to part (a).
(f)

Explanation of Solution
The electronic configuration is depends on the electrons in the atom. The iodine atom has
The subshell ordering by Aufbau principle is given below;
Therefore ground state electronic configuration of iodine atom is
Rubidium belongs to Period
The electronic configuration also can be written as follows,
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Chapter 1 Solutions
ACHIEVE/CHEMICAL PRINCIPLES ACCESS 2TERM
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