Chapter 4: Problem 9
Fill in the blanks. In the long form of the periodic table, ___ group elements can release maximum amount of energy by the addition of electron into its valence shell.
Chapter 4: Problem 9
Fill in the blanks. In the long form of the periodic table, ___ group elements can release maximum amount of energy by the addition of electron into its valence shell.
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Get started for freeAn element with atomic number " \(32 "\) "belongs to (a) \(4^{\text {th }}\) period, VIA group or \(16^{\text {th }}\) group (b) \(3^{\text {rd }}\) period, IVA group or \(14^{\text {th }}\) group (c) \(4^{\text {th }}\) period, IVA group or \(14^{\text {th }}\) group (d) \(5^{\text {th }}\) period, VA group or \(15^{\text {th }}\) group
In a period, from the left to right the electron affinity increases, but alkaline earth metals have lower electron affinity than alkali metals because (a) alkaline earth metals have lesser atomic radius than alkali metals. (b) alkaline earth have higher electronegativity than alkali metals. (c) alkaline earth metals have completely filled "s-" orbitals. (d) alkaline earth metals have lesser electronegativity than alkali metals.
Fill in the blanks. The total number of inner transition elements present in the 7 th period are ____.
In the sixth period, the orbitals which are completely filled are (a) \(6 \mathrm{~s}, 6 \mathrm{p}, 5 \mathrm{~d}, 5 \mathrm{f}\) (b) \(6 s, 6 p, 6 d, 6 f\) (c) \(6 \mathrm{~s}, 5 \mathrm{f}, 6 \mathrm{~d}, 6 \mathrm{p}\) (d) \(6 s, 4 f, 5 d, 6 p\)
The first ionization energies of \(\mathrm{Li}, \mathrm{Be}, \mathrm{B}\) and \(\mathrm{C}\) are in the order: (a) \(\mathrm{Li}>\mathrm{Be}<\mathrm{B}<\mathrm{C}\) (b) \(\mathrm{Li}<\mathrm{Be}>\mathrm{B}<\mathrm{C}\) (c) \(\mathrm{Li}>\mathrm{Be}>\mathrm{B}>\mathrm{C}\) (d) \(\mathrm{Li}<\mathrm{Be}>\mathrm{B}>\mathrm{C}\)
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