Determine the number of unpaired electrons in each atom: K, Ca, Sc, Ti, V, Cr, Mn.
(a)
Interpretation:
The number of unpaired electrons in the given atoms should be given by knowing their ground-state electron configurations.
Concept Introduction:
An orbital is an area of space in which electrons are orderly filled. The maximum capacity in any type of orbital is two electrons. An atomic orbital is defined as the region of space in which the probability of finding the electrons is highest. It is subdivided into four orbitals such as
There are three basic principles in which orbitals are filled by the electrons.
- 1. Aufbau principle: In German, the word 'aufbau' means 'building up'. The electrons are arranged in various orbitals in the order of increasing energies.
- 2. Pauli exclusion principle: An electron does not have all the four quantum numbers.
- 3. Hund’s rule: Each orbital is singly engaged with one electron having the maximum same spin capacity after that only pairing occurs.
The electron configuration is the allocation of electrons of an atom in atomic orbitals. Electronic configuration of a particular atom is written by following the three basic principles. If all the atomic orbitals are filled by electrons, then the atom is diamagnetic in nature. Diamagnetic atoms are repelled by the magnetic field. If one or more unpaired electrons are present in an atom, then that atom is paramagnetic in nature. Paramagnetic atoms are attracted to the magnetic field.
To find: Count the number of unpaired electrons in
Answer to Problem 3.102QP
The number of unpaired electron in
Explanation of Solution
The noble gas core for
All the electrons are placed in the atomic orbitals by following Aufbau principle, Pauli exclusion principle and Hund’s rule
The one electron of
The unpaired electrons are present in
(b)
Interpretation:
The number of unpaired electrons in the given atoms should be given by knowing their ground-state electron configurations.
Concept Introduction:
An orbital is an area of space in which electrons are orderly filled. The maximum capacity in any type of orbital is two electrons. An atomic orbital is defined as the region of space in which the probability of finding the electrons is highest. It is subdivided into four orbitals such as
There are three basic principles in which orbitals are filled by the electrons.
- 1. Aufbau principle: In German, the word 'aufbau' means 'building up'. The electrons are arranged in various orbitals in the order of increasing energies.
- 2. Pauli exclusion principle: An electron does not have all the four quantum numbers.
- 3. Hund’s rule: Each orbital is singly engaged with one electron having the maximum same spin capacity after that only pairing occurs.
The electron configuration is the allocation of electrons of an atom in atomic orbitals. Electronic configuration of a particular atom is written by following the three basic principles. If all the atomic orbitals are filled by electrons, then the atom is diamagnetic in nature. Diamagnetic atoms are repelled by the magnetic field. If one or more unpaired electrons are present in an atom, then that atom is paramagnetic in nature. Paramagnetic atoms are attracted to the magnetic field.
To find: Count the number of unpaired electrons in
Answer to Problem 3.102QP
There is no unpaired electron in
Explanation of Solution
The noble gas core for
All the electrons are placed in the atomic orbitals by following Aufbau principle, Pauli exclusion principle and Hund’s rule
The two electrons of
There is no unpaired electron present in
(c)
Interpretation:
The number of unpaired electrons in the given atoms should be given by knowing their ground-state electron configurations.
Concept Introduction:
An orbital is an area of space in which electrons are orderly filled. The maximum capacity in any type of orbital is two electrons. An atomic orbital is defined as the region of space in which the probability of finding the electrons is highest. It is subdivided into four orbitals such as
There are three basic principles in which orbitals are filled by the electrons.
- 1. Aufbau principle: In German, the word 'aufbau' means 'building up'. The electrons are arranged in various orbitals in the order of increasing energies.
- 2. Pauli exclusion principle: An electron does not have all the four quantum numbers.
- 3. Hund’s rule: Each orbital is singly engaged with one electron having the maximum same spin capacity after that only pairing occurs.
The electron configuration is the allocation of electrons of an atom in atomic orbitals. Electronic configuration of a particular atom is written by following the three basic principles. If all the atomic orbitals are filled by electrons, then the atom is diamagnetic in nature. Diamagnetic atoms are repelled by the magnetic field. If one or more unpaired electrons are present in an atom, then that atom is paramagnetic in nature. Paramagnetic atoms are attracted to the magnetic field.
To find: Count the number of unpaired electrons in
Answer to Problem 3.102QP
The number of unpaired electron in
Explanation of Solution
The noble gas core for
All the electrons are placed in the atomic orbitals by following Aufbau principle, Pauli exclusion principle and Hund’s rule.
The three electrons of
The unpaired electrons are present in
(d)
Interpretation:
The number of unpaired electrons in the given atoms should be given by knowing their ground-state electron configurations.
Concept Introduction:
An orbital is an area of space in which electrons are orderly filled. The maximum capacity in any type of orbital is two electrons. An atomic orbital is defined as the region of space in which the probability of finding the electrons is highest. It is subdivided into four orbitals such as
There are three basic principles in which orbitals are filled by the electrons.
- 1. Aufbau principle: In German, the word 'aufbau' means 'building up'. The electrons are arranged in various orbitals in the order of increasing energies.
- 2. Pauli exclusion principle: An electron does not have all the four quantum numbers.
- 3. Hund’s rule: Each orbital is singly engaged with one electron having the maximum same spin capacity after that only pairing occurs.
The electron configuration is the allocation of electrons of an atom in atomic orbitals. Electronic configuration of a particular atom is written by following the three basic principles. If all the atomic orbitals are filled by electrons, then the atom is diamagnetic in nature. Diamagnetic atoms are repelled by the magnetic field. If one or more unpaired electrons are present in an atom, then that atom is paramagnetic in nature. Paramagnetic atoms are attracted to the magnetic field.
To find: Count the number of unpaired electrons in
Answer to Problem 3.102QP
The number of unpaired electrons in
Explanation of Solution
The noble gas core for
All the electrons are placed in the atomic orbitals by following Aufbau principle, Pauli exclusion principle and Hund’s rule.
The four electrons of
The unpaired electrons are present in
(e)
Interpretation:
The number of unpaired electrons in the given atoms should be given by knowing their ground-state electron configurations.
Concept Introduction:
An orbital is an area of space in which electrons are orderly filled. The maximum capacity in any type of orbital is two electrons. An atomic orbital is defined as the region of space in which the probability of finding the electrons is highest. It is subdivided into four orbitals such as
There are three basic principles in which orbitals are filled by the electrons.
- 1. Aufbau principle: In German, the word 'aufbau' means 'building up'. The electrons are arranged in various orbitals in the order of increasing energies.
- 2. Pauli exclusion principle: An electron does not have all the four quantum numbers.
- 3. Hund’s rule: Each orbital is singly engaged with one electron having the maximum same spin capacity after that only pairing occurs.
The electron configuration is the allocation of electrons of an atom in atomic orbitals. Electronic configuration of a particular atom is written by following the three basic principles. If all the atomic orbitals are filled by electrons, then the atom is diamagnetic in nature. Diamagnetic atoms are repelled by the magnetic field. If one or more unpaired electrons are present in an atom, then that atom is paramagnetic in nature. Paramagnetic atoms are attracted to the magnetic field.
To find: Count the number of unpaired electrons in
Answer to Problem 3.102QP
The number of unpaired electrons in
Explanation of Solution
The noble gas core for
All the electrons are placed in the atomic orbitals by following Aufbau principle, Pauli exclusion principle and Hund’s rule
The five electrons of
The unpaired electrons are present in
(f)
Interpretation:
The number of unpaired electrons in the given atoms should be given by knowing their ground-state electron configurations.
Concept Introduction:
An orbital is an area of space in which electrons are orderly filled. The maximum capacity in any type of orbital is two electrons. An atomic orbital is defined as the region of space in which the probability of finding the electrons is highest. It is subdivided into four orbitals such as
There are three basic principles in which orbitals are filled by the electrons.
- 1. Aufbau principle: In German, the word 'aufbau' means 'building up'. The electrons are arranged in various orbitals in the order of increasing energies.
- 2. Pauli exclusion principle: An electron does not have all the four quantum numbers.
- 3. Hund’s rule: Each orbital is singly engaged with one electron having the maximum same spin capacity after that only pairing occurs.
The electron configuration is the allocation of electrons of an atom in atomic orbitals. Electronic configuration of a particular atom is written by following the three basic principles. If all the atomic orbitals are filled by electrons, then the atom is diamagnetic in nature. Diamagnetic atoms are repelled by the magnetic field. If one or more unpaired electrons are present in an atom, then that atom is paramagnetic in nature. Paramagnetic atoms are attracted to the magnetic field.
To find: Count the number of unpaired electrons in
Answer to Problem 3.102QP
The number of unpaired electrons in
Explanation of Solution
The noble gas core for
All the electrons are placed in the atomic orbitals by following Aufbau principle, Pauli exclusion principle and Hund’s rule.
The six electrons of
The unpaired electrons are present in
(g)
Interpretation:
The number of unpaired electrons in the given atoms should be given by knowing their ground-state electron configurations.
Concept Introduction:
An orbital is an area of space in which electrons are orderly filled. The maximum capacity in any type of orbital is two electrons. An atomic orbital is defined as the region of space in which the probability of finding the electrons is highest. It is subdivided into four orbitals such as
There are three basic principles in which orbitals are filled by the electrons.
- 1. Aufbau principle: In German, the word 'aufbau' means 'building up'. The electrons are arranged in various orbitals in the order of increasing energies.
- 2. Pauli exclusion principle: An electron does not have all the four quantum numbers.
- 3. Hund’s rule: Each orbital is singly engaged with one electron having the maximum same spin capacity after that only pairing occurs.
The electron configuration is the allocation of electrons of an atom in atomic orbitals. Electronic configuration of a particular atom is written by following the three basic principles. If all the atomic orbitals are filled by electrons, then the atom is diamagnetic in nature. Diamagnetic atoms are repelled by the magnetic field. If one or more unpaired electrons are present in an atom, then that atom is paramagnetic in nature. Paramagnetic atoms are attracted to the magnetic field.
To find: Count the number of unpaired electrons in
Answer to Problem 3.102QP
The number of unpaired electrons in
Explanation of Solution
The noble gas core for
All the electrons are placed in the atomic orbitals by following Aufbau principle, Pauli exclusion principle and Hund’s rule.
The seven electrons of
The unpaired electrons are present in
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Problem Solving Workbook For Chemistry: Atoms First With Advanced Topics
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