
(a)
Interpretation:
The element for the following orbital diagram has to be identified. Also, whether this orbital diagram is the ground state or excited state or impossible state of the atom has to be determined. If this orbital diagram is an excited state then the ground state orbital diagram has to be drawn.
Concept Introduction:
The electronic configuration is defined as the distribution of electrons in various atomic orbitals of the atom. The principle that are present in an outermost orbital are known as valence electrons whereas those present in the orbitals with lower quantum numbers are called core electrons. Electrons are filled in orbitals in accordance with three rules: Aufbau principle, Hund’s rule, and Pauli’s exclusion principle. Aufbau principle states that electrons are filled in the orbitals from lower to higher energy level as follows:
Hund’s rule states that initially each orbital is singly occupied and then pairing occurs and Pauli’s exclusion principle states that the spin of two electrons in one orbital is always different.
If one or more electron is in higher allowed orbitals of the atom then this is known as excited state of the atom. The excited state of an atom is shown by the orbital diagram. The orbital diagram is the way to show the distribution of electrons in an atom.
(b)
Interpretation:
The element for the following orbital diagram has to be identified. Also, whether this orbital diagram is the ground state or excited state or impossible state of the atom has to be determined. If this orbital diagram is an excited state then the ground state orbital diagram has to be drawn.
Concept Introduction:
Refer to part (a).
(c)
Interpretation:
The element for the following orbital diagram has to be identified. Also, whether this orbital diagram is the ground state or excited state or impossible state of the atom has to be determined. If this orbital diagram is an excited state then the ground state orbital diagram has to be drawn.
Concept Introduction:
Refer to part (a).
(d)
Interpretation:
The element for the following orbital diagram has to be identified. Also, whether this orbital diagram is the ground state or an excited state of the atom has to be determined. If this orbital diagram is an excited state then the ground state orbital diagram has to be drawn.
Concept Introduction:
Refer to part (a).

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Chapter 7 Solutions
Chemistry: Principles and Practice
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