2. Which element has an electron configuration of [Ar]4s23d10?
Cd Li Zn Cu
3. Calculate the wavelength of light emitted when the following transition occurs in the hydrogen atom: n = 3 n = 1
56 * 10-7 456.7 656.7 4.56 * 10-7 524
4. What set of quantum numbers is correct?
n=2, l=1, ml=-1,0,1,2 n=1, l=1, ml=0 n=6, l=5, ml=-6...0...6 n=5, l=4, ml=-5...0...5 None of these
5. What is the electron configuration of Nd?
[Xe]6s24f4 [Xe]6s24f3 [Xe]6s26f4 [Xe]5s24d4 None of these
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