The position and momentum of a particle can be measured precisely, but not at th

Question

The position and momentum of a particle can be measured precisely, but not at the same time. For an electron in a given atom, the larger n, the larger the average distance from the nucleus and the higher the orbital energy. Larger the average distance from the nucleus and the lower the orbital energy. larger the smaller the average distance from the nucleus and the higher the orbital smaller the average distance energy from the nucleus and the lower the orbital energy. What are the possible values of l if n = 5? 5 0, 1, 2, 3, or 4 -5, -4, -3, -2, -1, 0, +1, +2, +3, +4, or +5 How many h orbitals are allowed in a given shell? 5 6 11 13 How many electrons can a single orbital hold? 2n 2 2l + 1 8 Which statement is false? For any atom, the 4s orbital lies lower in energy than the 5s orbital. For a hydrogen atom, a 4s orbital, a 4p orbital, and a 4d orbital all have the same energy. The 4s orbital lies lower in energy than the 3d orbital for atoms K, Ca, Sc, and Ti. The 4s orbital lies lower in energy than the 3d orbital for Cu and Fe^2+ The symbol [Kr] represents 4s^24p^6. 1s^22s^22p^63s^23p^64s^24p^6. 1s^22s^22p^63s^23p^63d^104s^24p^6. 1s^22s^22p^63s^23p^63d^104s^24p^64d^10. An element in a ground state electron configuration has 4 electrons in the 4p orbitals. Which of the following statements cannot describe the electron configurations in this atom? At least one electron has an orbital angular momentum of (I) of 2. Six electrons are in the n = 4 shell.

Explanation / Answer

63)
as n increases, distance and potential enrgy of both increases
Answer: A

64)
for any n, l can be 0 to n-1
for n=5, l can be 0,1,2,3,4
Answer: B

65)
for h orbital, l = 5
number of orbital = 2l+1 = 2*5+1 = 11
Answer: C

66)
Answer: B

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