Electronic Configurations and The Periodic Table
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CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313038 The atomic symbols of some elements are given below:
\({\mathrm{\mathrm{Ca}, \mathrm{Pt}, \mathrm{Zr}, \mathrm{Ti}, \mathrm{Cr}, \mathrm{Au}, \mathrm{Mo}, \mathrm{Mn}, \mathrm{Co}, \mathrm{Rh}, \mathrm{Pd}, \mathrm{Si}}}\), \({\mathrm{\mathrm{Cd}, \mathrm{Ge}, \mathrm{Br}, \mathrm{Zn}}}\)
The number of elements from the above that belong to period 4 is

1 10
2 8
3 4
4 16
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313039 The last element of the p-block in \(6^{\text {th }}\) period is represented by the outermost electronic configuration

1 \(7 \mathrm{~s}^{2} 7 \mathrm{p}^{6}\)
2 \(5 \mathrm{f}^{14} 6 \mathrm{~d}^{10} 7 \mathrm{~s}^{2} 7 \mathrm{p}^{6}\)
3 \(4 \mathrm{f}^{14} 5 \mathrm{~d}^{10} 6 \mathrm{~s}^{2} 6 \mathrm{p}^{6}\)
4 \(4 \mathrm{f}^{14} 5 \mathrm{~d}^{10} 6 \mathrm{~s}^{2} 6 \mathrm{p}^{4}\)
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313040 The period consisting of lanthanides starts with the filling of

1 7s orbitals
2 6s orbitals
3 4f orbitals
4 5d orbitals
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CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313038 The atomic symbols of some elements are given below:
\({\mathrm{\mathrm{Ca}, \mathrm{Pt}, \mathrm{Zr}, \mathrm{Ti}, \mathrm{Cr}, \mathrm{Au}, \mathrm{Mo}, \mathrm{Mn}, \mathrm{Co}, \mathrm{Rh}, \mathrm{Pd}, \mathrm{Si}}}\), \({\mathrm{\mathrm{Cd}, \mathrm{Ge}, \mathrm{Br}, \mathrm{Zn}}}\)
The number of elements from the above that belong to period 4 is

1 10
2 8
3 4
4 16
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313039 The last element of the p-block in \(6^{\text {th }}\) period is represented by the outermost electronic configuration

1 \(7 \mathrm{~s}^{2} 7 \mathrm{p}^{6}\)
2 \(5 \mathrm{f}^{14} 6 \mathrm{~d}^{10} 7 \mathrm{~s}^{2} 7 \mathrm{p}^{6}\)
3 \(4 \mathrm{f}^{14} 5 \mathrm{~d}^{10} 6 \mathrm{~s}^{2} 6 \mathrm{p}^{6}\)
4 \(4 \mathrm{f}^{14} 5 \mathrm{~d}^{10} 6 \mathrm{~s}^{2} 6 \mathrm{p}^{4}\)
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313040 The period consisting of lanthanides starts with the filling of

1 7s orbitals
2 6s orbitals
3 4f orbitals
4 5d orbitals
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CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313038 The atomic symbols of some elements are given below:
\({\mathrm{\mathrm{Ca}, \mathrm{Pt}, \mathrm{Zr}, \mathrm{Ti}, \mathrm{Cr}, \mathrm{Au}, \mathrm{Mo}, \mathrm{Mn}, \mathrm{Co}, \mathrm{Rh}, \mathrm{Pd}, \mathrm{Si}}}\), \({\mathrm{\mathrm{Cd}, \mathrm{Ge}, \mathrm{Br}, \mathrm{Zn}}}\)
The number of elements from the above that belong to period 4 is

1 10
2 8
3 4
4 16
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313039 The last element of the p-block in \(6^{\text {th }}\) period is represented by the outermost electronic configuration

1 \(7 \mathrm{~s}^{2} 7 \mathrm{p}^{6}\)
2 \(5 \mathrm{f}^{14} 6 \mathrm{~d}^{10} 7 \mathrm{~s}^{2} 7 \mathrm{p}^{6}\)
3 \(4 \mathrm{f}^{14} 5 \mathrm{~d}^{10} 6 \mathrm{~s}^{2} 6 \mathrm{p}^{6}\)
4 \(4 \mathrm{f}^{14} 5 \mathrm{~d}^{10} 6 \mathrm{~s}^{2} 6 \mathrm{p}^{4}\)
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313040 The period consisting of lanthanides starts with the filling of

1 7s orbitals
2 6s orbitals
3 4f orbitals
4 5d orbitals
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