Problem 45
Which electron is, on average, closer to the nucleus: an electron in a \(2 s\) orbital or an electron in a \(3 s\) orbital?
Problem 46
Which electron is, on average, farther from the nucleus: an electron in a \(3 p\) orbital or an electron in a \(4 p\) orbital?
Problem 47
According to the quantum-mechanical model for the hydrogen atom, which electron transition produces light with longer wavelength: \(2 p\) to \(1 s\) or \(3 p\) to \(1 s\) ?
Problem 48
According to the quantum-mechanical model for the hydrogen atom, which transition produces light with longer wavelength: \(3 p\) to \(2 s\) or \(4 p\) to \(2 s\) ?
Problem 49
Write full electron configurations for each element. (a) \(\mathrm{Sr}\) (b) Ge (c) \(\mathrm{Li}\) (d) \(\mathrm{Kr}\)
Problem 50
Write full electron configurations for each element. (a) \(\mathrm{N}\) (b) \(\mathrm{Mg}\) (c) \(\mathrm{Ar}\) (d) Se
Problem 51
Write full orbital diagrams and indicate the number of unpaired electrons for each element. (a) \(\mathrm{He}\) (b) \(\mathrm{B}\) (c) \(\mathrm{Li}\) (d) \(\mathrm{N}\)
Problem 52
Write full orbital diagrams and indicate the number of unpaired electrons for each element. (a) \(\mathrm{F}\) (b) \(C\) (c) \(\mathrm{Ne}\) (d) \(\mathrm{Be}\)
Problem 53
Write electron configurations for each element. Use the symbol of the previous noble gas in brackets to represent the core electrons. (a) Ga (b) As (c) \(\mathrm{Rb}\) (d) \(S n\)
Problem 55
Write electron configurations for each transition metal. (a) Zn (b) \(\mathrm{Cu}\) (c) \(\mathrm{Zr}\) (d) \(\mathrm{Fe}\)