
(a)
Interpretation:
The orbital diagrams for elements with
Concept Introduction:
The electronic configuration is defined as the distribution of electrons in various atomic orbitals of the atom. The electrons 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. The general outer electronic configuration of
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.
(b)
Interpretation:
The electron configuration with completely filled subshells for the element with an atomic number less than 10 has to be determined.
Concept Introduction:
Refer to part (a).
(c)
Interpretation:
The orbital diagram for electronic configuration of elements with an atomic number 6 and 8 has to be determined.
Concept Introduction:
Refer to part (a).

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Chapter 7 Solutions
Chemistry: Principles and Practice
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