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1. What is the ionization energy of He+?
5246 kJ/mol 1212 kJ/mol 4064 kJ/mol 1313 kJ/mol 7241 kJ/mol

2. What is the electron configuration of Nd?
[Xe]6s24f4[Xe]6s24f3[Xe]6s26f4[Xe]5s24d4None of these

3. 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

4. Which element has an electron configuration of [Ar]4s23d10?
Cd Li Zn Cu

5. What is the maximum number of electrons in an atom with n = 5 and ms= +1/2?
26 25 24 23 22

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