Compilation NIST failed cases

[gabrielasd]

These are some known cases that fail when compiling NIST DB because we do not have information of electronic configuration (there is no entry for these in the MULTIPLICITIES dict) cations: $Pr^{+1}$, and from $Tb^{+1}$ to $Tm^{+1}$ anions: from $Fm^{-1}$ to $Lr^{-1}$

[PaulWAyers]

For the anions, I think we have to just return "none."

I looked at the others. I came up with: Pr+1 = ${}^5 I$ (multiplicity = 5) Tb+1 = ${}^7 H$ (multiplicity = 7) Dy+1 = ${}^6 I$ (multiplicity = 6) Ho+1 = ${}^5 I$ (multiplicity = 5) Er+1 = ${}^4 H$ (multiplicity = 4) Tm+1 = ${}^3 F$ (multiplicity = 3)

These are all based on the "leading percentage" for the lowerst-energy state in the atomic spectra database. E.g., for Tm

[gabrielasd]

NIST database is also missing neutral species of Md, No and Lr because our MULTIPLICITIES table only gets up to atomic number 100 (Fm)

[PaulWAyers]

Md is a doublet ${ }^2 F$ No is a singlet ${ }^1 S$ Lr is a doublet ${ }^2 P $