Bond energies increase in going from C-N (lowest) to C-O to C-F (highest). Explain this trend based upon the atomic sizes of these atoms as deduced from their positions in the periodic table
A) In going from nitrogen to oxygen to fluorine the atoms get larger. This means a greater nuclear charge, which translates into stronger chemical bonds.
B) In going from nitrogen to oxygen to fluorine the atoms get smaller. This means a greater nuclear charge, which translates into stronger chemical bonds.
C) In going from nitrogen to oxygen to fluorine the atoms get larger. This means that the bonding atoms are farther apart, which translates into a greater bond energy.
D) In going from nitrogen to oxygen to fluorine the atoms get smaller. This means that the bonding atoms are closer together, which translates into a greater bond energy.
Answer: D
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A. C B. F
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A) life found beyond the Earth which is based on the same biology and chemistry as life on Earth B) advanced life forms that have visited the Earth C) any kind of life found beyond the Earth D) advanced life found on Earth-like planets around other stars
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A: a much faster speed in the outer regions than in the inner regions. B: a much slower speed in the outer regions than in the inner regions. C: about the same speed at various distances from the center of the galaxy
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A) the redshifts in the light of from supernovas in other galaxies far away. B) the rate of rotation of distant galaxies. C) the center of our own galaxy, which is accelerating as it expands. D) the redshifts of the stars in our own galaxy. E) the redshift in the light from the cosmic background radiation.