Answer the two questions below a and b based on the following electron configura

Question

Answer the two questions below a and b based on the following electron configuration. 1s^2 2s^2 2p^6 3s^2 3p^5 4s^2 3d^5 4p^1 Does the electron configuration below represent: 1. an ion in the ground state, or 2.in an atom in an excited state? Answer: What is the value of the angular momentum quantum number for the singe electron found in 4p? The familiar yellow light(lambda = 590nm) from a low pressure street lamp results from the 3p as transition in sodium. Suppose a transition occurs from 4p 3s. Would the resulting emission have a wavelength_?_ Answer:_________

Explanation / Answer

Q6.

a)

this must be "ground " state

one could think that the 4p1 electron is excited since the 3d orbiatl is not filled up, but accordingly,

d = 10 electrons, so all 5 electrons have filled the SAME spin, so the only way they can follow, is to go to the 4p1 orbital

b)

angular momentum and quantum number of the single electron in 4p

quantum number "n" = 4

angular momentum "l" = is given by "p"

recall that, 0,1,2,3 = s,p,d,... therefore this is p; meaning that l = 1

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---