The Bohr model of the hydrogen atom predicts an ionization energy of 13.6 eV. With this model one would expect the ionization energy of the Li++ ion to be
A) 122.4 eV
B) 40.8 eV
C) 54.4 eV
D) 27.2 eV
E) 79.6 eV
A
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What is the function of the receiver antenna of a radio telescope?
a. To absorb the radio energy collected by the dish b. To collect and focus the radiation c. To follow a signal d. To move the telescope e. To control the shape of the dish
Standing at the shore of a still lake, the reflected view of scenery on the other side of the lake is the view you would see if you were upside down with your eye in the line of sight
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Although we know less about dark matter in elliptical galaxies than in spiral galaxies, what does current evidence suggest?
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