The tendency of a wave to bend as it passes from one transparent medium to another is called:
A) reflection.
B) dispersion.
C) refraction.
D) diffraction.
E) interference.
C
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What is the Pauli exclusion principle?
a. Only two electrons can be in the same state (have the same quantum numbers). b. No two electrons can be in the same state (have the same quantum numbers). c. Electrons repel each other. d. No two elements can have electrons in the same state (with the same quantum numbers). e. No two electrons can occupy the same shell.
The electrical force between two charged objects depends on
A. the total number of protons in both objects. B. the sum of the net charges on the objects. C. the product of the net charge on each of the two objects. D. just the magnitude of the largest charge. E. the number of electrons in the objects.
Draw the three structural formulas for the molecular formula C3H8O
Compared to the volume of its nucleus, the volume of an atom is about
A) the same. B) a thousand times greater. C) a million times greater. D) a billion times greater. E) a trillion times greater.