Chapter 2: Problem 5
An atom has net charge of \(1 .\) It has 18 electrons and 20 neutrons. Its mass number is (1) 37 (2) 35 (3) 38 (4) 20
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In the Schrodinger wave equation \(\Psi\) represents (1) orbits (2) wave function (3) amplitude function (4) all
The electronic configuration of the element which is just above the element with atomic number 43 in the same group is (1) \(1 \mathrm{~s}^{2} 2 \mathrm{~s}^{2} 2 \mathrm{p}^{6} 3 \mathrm{~s}^{2} 3 \mathrm{p}^{6} 3 \mathrm{~d}^{19} 4 \mathrm{~s}^{2} 4 \mathrm{p}^{6}\) (2) \(1 \mathrm{~s}^{2} 2 \mathrm{~s}^{2} 2 \mathrm{p}^{6} 3 \mathrm{~s}^{2} 3 \mathrm{p}^{6} 3 \mathrm{~d}^{5} 4 \mathrm{~s}^{2}\) (3) \(1 \mathrm{~s}^{2} 2 \mathrm{~s}^{2} 2 \mathrm{p}^{6} 3 \mathrm{~s}^{2} 3 \mathrm{p}^{6} 3 \mathrm{~d}^{6} 4 \mathrm{~s}^{1}\) (4) \(1 \mathrm{~s}^{2} 2 \mathrm{~s}^{2} 2 \mathrm{p}^{6} 3 \mathrm{~s}^{2} 3 \mathrm{p}^{6} 3 \mathrm{~d}^{10} 4 \mathrm{~s}^{2} 4 \mathrm{p}^{5}\)
Which of the following statement is false? (1) The orbit with more number of nodal planes will be of more energy. (2) The orbital with two angular nodes (nodal planes) is f-orbital. (3) The zero probability of finding the electron in \(\mathrm{p}_{x}-\) orbital is in \(y-z\) plane. (4) The orbital which do not has angular nodes is s-orbital.
\(\Psi^{2}\), the wave function, represents the probability of finding an electron. Its value depends (1) inside the nucleus (2) far from the nucleus (3) near the nucleus (4) upon the type of orbital
Considering the three electronic transitions \(n=2 \rightarrow\) \(n=1, n=3 \rightarrow n=2\) and \(n=4 \rightarrow n=3\) for the hydrogen at which one of the following is true. (1) The photon emitted in the transition \(n=4\) to \(n=3\) would have the longest wavelength. (2) The photon emitted in the transition \(n=2\) to \(n=1\) would have the longest wavelength. (3) The transition from \(n=3\) to \(n=1\) is forbidden. (4) The electron does not experience any change in orbit radius for any of these transitions.
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