To a reasonable approximation, the density of a nucleus
A) varies unpredictably for different values of Z. B) is independent of the mass number.
C) is greater for large-Z nuclei. D) is smaller for large-Z nuclei.
B
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An oxygen molecule has a moment of inertia of 5 × 10^?46 kg ? m2 . Calculate the bond length (in nm). Recall that the atomic mass of oxygen is 16 u (1 u = 1.66 × 10^?27 kg)
a. 0.3 b. 0.1 c. 0.2 d. 0.4 e. 0.5
Is there any method by which we can detect individual atoms in the laboratory?
A) Yes, by using microscopes based on X-rays rather than on light. B) Yes, by using very high power microscopes based on visible light of very short wavelength. C) No, because atoms are purely mathematical abstractions and not real physical objects. D) Yes, by using microscopes based on the "matter waves" made by material particles such as electrons. E) No, because atoms are smaller than any physical wavelengths.
__________ in an x ray spectrum of an atom occurs because of rapid deceleration of the bombarding electrons
Fill in the blank(s) with correct word
The equivalent capacitance of the circuit shown below is
A. 0.2 C. B. 0.4 C. C. 1 C. D. 4 C. E. 5 C.