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Chapter 28: Problem 4
Magic numbers as applied to stability of atom are (a) \(1,7,19,27\) (b) \(3,9,21,29\) (c) \(10,20,30,40\) (d) \(2,8,20,28\)
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\({ }_{14}^{30} \mathrm{Si},{ }_{15}^{31} \mathbf{p}\) and \({ }_{16}^{32} \mathrm{~S}^{a r e}\) (a) isotopes (b) isobars (c) isotones (d) none of these
Which of the following is not a method of detection and measurement of radioactivity? (a) Slater method (b) Wilson cloud chamber method (c) Geiger-Muller counter (d) Scintillation method
The reaction \({ }_{1}^{1} \mathrm{H}+{ }_{1}^{1} \mathrm{H}+2{ }_{0}^{1} \mathrm{n} \longrightarrow{ }_{2}^{4} \mathrm{He}^{+}\) Energy is an example if (a) capture reaction (b) spallation reaction (c) fusion reaction (d) fission reaction
The stable end product in the uranium series \(\left({ }_{92}^{238} \mathrm{U}\right)\) is (a) \({ }_{82}^{205} \mathrm{~Pb}\) (b) \({ }_{82}^{206} \mathrm{~Pb}\) (c) \({ }_{82}^{207} \mathrm{~Pb}\) (d) \({ }_{82}^{208} \mathrm{~Pb}\)
Isotopes are atom having the (a) same atomic number but different atomic masses (b) different atomic numbers but same atomic mass (c) same atomic number and atomic mass (d) different atomic numbers and atomic masses
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