Fluorine vs Ytterbium

PropertyF FluorineYb Ytterbium
Atomic number970
SymbolFYb
NameFluorineYtterbium
Categoryhalogenlanthanide
Standard Atomic Weight18.998403 u173.054 u
Period26
Group17N/A
Blockps
Phase at STPgassolid
Electron configuration[He]2s22p5[Xe]6s24f14
Oxidation states-1[0, 1, 2, 3]
Electronegativity (Pauling)3.98N/A
Electron affinity3.4011 eV-0.02 eV
Density1.696 kg/m³6900 kg/m³
Melting point-219.62 °C818.85 °C
Boiling point-188.12 °C1195.85 °C
Discovery year18861878