1H2He3Li4Be5B6C7N8O9F10Ne11Na12Mg13Al14Si15P16S17Cl18Ar19K20Ca21Sc22Ti23V24Cr25Mn26Fe27Co28Ni29Cu30Zn31Ga32Ge33As34Se35Br36Kr37Rb38Sr39Y40Zr41Nb42Mo43Tc44Ru45Rh46Pd47Ag48Cd49In50Sn51Sb52Te53I54Xe55Cs56BaLa*Lanthanides57La58Ce59Pr60Nd61Pm62Sm63Eu64Gd65Tb66Dy67Ho68Er69Tm70Yb71Lu72Hf73Ta74W75Re76Os77Ir78Pt79Au80Hg81Tl82Pb83Bi84Po85At86Rn87Fr88RaAc*Actinides89Ac90Th91Pa92U93Np94Pu95Am96Cm97Bk98Cf99Es100Fm101Md102No103Lr104Rf105Db106Sg107Bh108Hs109Mt110Ds111Rg112Cn113Nh114Fl115Mc116Lv117Ts118Og
Refractive index
The dimensionless optical material property refractive index is the ratio of the wavelength of light in vacuum to the wavelength in the material.
| Element | Refractive index | ||
|---|---|---|---|
| 1H | Hydrogen | gaseous: 1 | |
| 2He | Helium | gaseous: 1 | |
| 6C | Carbon | Diamond: 2.417 | |
| 7N | Nitrogen | gaseous: 1 | |
| 8O | Oxygen | gaseous: 1 | |
| 9F | Fluorine | 1 | |
| 10Ne | Neon | 1 | |
| 15P | Phosphorus | 1.001 | |
| 16S | Sulfur | 1.001 | |
| 17Cl | Chlorine | 1 | |
| 18Ar | Argon | 1 | |
| 30Zn | Zinc | 1.002 | |
| 33As | Arsenic | 1.001 | |
| 34Se | Selenium | 1 | |
| 35Br | Bromine | 1.001 | |
| 36Kr | Krypton | 1 | |
| 52Te | Tellurium | 1 | |
| 54Xe | Xenon | 1 | |
| 80Hg | Mercury | 1 | |