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Chapter 4: Problem 8
Fill in the blanks. In the periodic table, vertical columns of elements are called ___ and horizontal rows of elements are called ___.
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The energy released when an electron is added to the valence shell of a neutral, gaseous, isolated atom is called (a) electronegativity (b) ionization potential (c) electron affinity (d) lattice energy
Fill in the blanks. Amongst the species \(\mathrm{Br}^{-}, \mathrm{Br}, \mathrm{Br}^{+}\), the smallest one in size is ____.
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 general electronic configuration of representative elements is (a) \(\mathrm{ns}^{1-2} \mathrm{np}^{1-6}\) (b) \(\mathrm{ns}^{1-2} \mathrm{np}^{1-5}\) (c) \(\mathrm{ns}^{1-2}(\mathrm{n}-1) \mathrm{p}^{1-5}\) (d) \(\mathrm{ns}^{1-2}(\mathrm{n}-1) \mathrm{p}^{1-6}\)
The element having the electronic configuration \([\mathrm{Kr}] 4 \mathrm{~d}^{10} 4 \mathrm{f}^{14} 5 \mathrm{~s}^{2} 5 \mathrm{p}^{6} 5 \mathrm{~d}^{2} 6 \mathrm{~s}^{2}\) belongs to (a) s-block (b) p-block (c) d-block (d) f-block
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