Class 11ChemistryClassification of Elements and Periodicity in PropertiesMix Examples - Classification of Elements and Periodicity in Properties
EasyTo which block do the elements with the following outer electronic configurations belong?
$(i)$ $6s^2 4f^3$
$(ii)$ $3s^2 3p^4$
$(iii)$ $3s^1$
$(iv)$ $3d^2 4s^2$
$(i)$ $6s^2 4f^3$
$(ii)$ $3s^2 3p^4$
$(iii)$ $3s^1$
$(iv)$ $3d^2 4s^2$
(N/A) $(i)$ $6s^2 4f^3$: The last electron enters the $4f$ orbital,so it belongs to the $f$-block.
$(ii)$ $3s^2 3p^4$: The last electron enters the $3p$ orbital,so it belongs to the $p$-block.
$(iii)$ $3s^1$: The last electron enters the $3s$ orbital,so it belongs to the $s$-block.
$(iv)$ $3d^2 4s^2$: The last electron enters the $3d$ orbital,so it belongs to the $d$-block.
$(ii)$ $3s^2 3p^4$: The last electron enters the $3p$ orbital,so it belongs to the $p$-block.
$(iii)$ $3s^1$: The last electron enters the $3s$ orbital,so it belongs to the $s$-block.
$(iv)$ $3d^2 4s^2$: The last electron enters the $3d$ orbital,so it belongs to the $d$-block.
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View SolutionWhich of the following statements are $NOT$ true about the periodic table?
$A.$ The properties of elements are a function of atomic weights.
$B.$ The properties of elements are a function of atomic numbers.
$C.$ Elements having similar outer electronic configuration are arranged in the same period.
$D.$ An element's location reflects the quantum numbers of the last filled orbital.
$E.$ The number of elements in a period is the same as the number of atomic orbitals available in the energy level that is being filled.
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$B.$ The properties of elements are a function of atomic numbers.
$C.$ Elements having similar outer electronic configuration are arranged in the same period.
$D.$ An element's location reflects the quantum numbers of the last filled orbital.
$E.$ The number of elements in a period is the same as the number of atomic orbitals available in the energy level that is being filled.
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