(a)
Interpretation:
The electron configuration of Nitrogen and the change to achieve a noble gas configuration needs to be explained.
Concept introduction:
In chemistry, an electron configuration is the arrangement of electrons in a molecule, an atom, or a different physical structure.

Answer to Problem 5SSC
The electronic configuration of Nitrogen is
Explanation of Solution
The elements have their electrons, which are distributed in its atomic orbital and this distribution is known as that element’s electron configuration. This distribution or filling is done as per standard notation, in which filling is at subshell levels and is placed in sequence.
Nitrogen has
(b)
Interpretation:
The electronic configuration of Sulphur and the change occur to achieve a noble gas configuration needs to be explained.
Concept introduction:
In chemistry, an electron configuration is the arrangement of electrons in a molecule, an atom, or a different physical structure.
(b)

Answer to Problem 5SSC
The electronic configuration of Sulphur is
Explanation of Solution
The elements have their electrons, which are distributed in its atomic orbital and this distribution is known as that element’s electron configuration. This distribution or filling is done as per standard notation, in which filling is at subshell levels and is placed in sequence.
Sulfur has
So, sulfur needs to gain
(c)
Interpretation:
The electronic configuration of Barium and the change that occur to achieve a noble gas configuration needs to be explained.
Concept introduction:
In chemistry, an electron configuration is the arrangement of electrons in a molecule, an atom, or a different physical structure.
(c)

Answer to Problem 5SSC
The electronic configuration of Barium is
Explanation of Solution
The elements have their electrons, which are distributed in its atomic orbital and this distribution is known as that element’s electron configuration. This distribution or filling is done as per standard notation, in which filling is at subshell levels and is placed in sequence.
Atomic Barium has
So, barium needs to lose
(d)
Interpretation:
The electronic configuration of Lithium and the change that occur to achieve a noble gas configuration needs to be determined.
Concept introduction:
In chemistry, an electron configuration is the arrangement of electrons in a molecule, an atom, or a different physical structure.
(d)

Answer to Problem 5SSC
The electronic configuration of Lithium is
Explanation of Solution
The elements have their electrons, which are distributed in its atomic orbital and this distribution is known as that element’s electron configuration. This distribution or filling is done as per standard notation, in which filling is at subshell levels and is placed in sequence.
Atomic Lithium has
It is also depicted as
Hence, lithium needs to lose an electron to reach the nearest noble gas configuration of helium.
Chapter 7 Solutions
Chemistry: Matter and Change
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