2. What is the electron configuration of Nd?
[Xe]6s24f4[Xe]6s24f3[Xe]6s26f4[Xe]5s24d4None of these
3. In Bohr's atomic theory, when an electron moves from one energy level to another energy level more distant from the nucleus:
energy emitted energy absorbed no change light emmitted none
4. Calculate the wavelength of light emitted when the following transition occurs in the hydrogen atom: n = 3 n = 1
56 * 10-7456.7 656.7 4.56 * 10-7524
5. How many electrons in the s orbitals of chlorine?
2 4 6 8 10
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