Erbium vs Thulium

Pumili ng hanggang 3 elemento at tingnan kung paano sila nagkakaiba.

KatangianErbiumThulium
Atomic number 68 69
Atomic mass 167.26 168.93
Electronegativity 1.24 1.25
Melting point 1,802 K (1,528.8 °C) 1,818 K (1,544.8 °C)
Boiling point 3,141 K (2,867.8 °C) 2,223 K (1,949.8 °C)
Density 9.066 g/cm³ 9.32 g/cm³
Atomic radius 235 pm 227 pm
Ionization energy 6.108 eV 6.184 eV
Natuklasan 1843 1879
Kategorya Lanthanide Lanthanide
Estado sa temp. ng silid Solid Solid
Block f f
Grupo — —
Peryodo 6 6
Valence electron 2 2
Karaniwang karga +3 +3
Electron configuration [Xe] 4f12 6s2 [Xe] 4f13 6s2