How many 2d electron states can an atom have? How many 3d electron states can an

Question

How many 2d electron states can an atom have? How many 3d electron states can an atom have? The correct ground state electron configuration of boron (Z = 5) is: 40) In Bohr's model of the hydrogen atom, electrons orbiting the proton with a high orbital radius have less kinetic energy, more potential energy, and more mechanical energy than those with a low orbital radius. less kinetic energy, more potential energy, and the same mechanical energy than those with a low orbital radius. more kinetic energy, less potential energy, and more mechanical energy than those with a low orbital radius. less kinetic energy, less potential energy, and less mechanical energy than those with a low orbital radius. The Bohr model of the hydrogen atom was not able to explain the cause of why some emission lines were brighter than other emission lines. the wavelengths of the emission lines in the ultraviolet range. the wavelengths of the emission lines in the infrared range. None of the above; the Bohr model explained all of these features.

Explanation / Answer

40)   A

41)   E

42)   A

43) C

44)   A

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