Lanthanide

Science / Chemistry / Lanthanide: Elements 57-70 are called lanthanides. Electrons added during the Aufbau construction of lanthanide atoms go into the 4f subshell.

Lanthanide Contraction

Science / Chemistry / Lanthanide Contraction: An effect that causes sixth period elements with filled 4f subshells to be smaller than otherwise expected. The intervention of the lanthanides increases the effective nuclear charge, which offsets th MORE

Samarium (Sm)

Science / Periodic Table of Elements / Samarium (Sm): Atomic number: 62 Atomic mass: 150.35 g.mol -1 Electronegativity: 1.2 Density: 6.9 g.cm-3 at 20°C Melting point: 1072 °C Boiling point: 1790 °C Vanderwaals radius: unknown Ionic radius: unknown Iso MORE

Terbium (Tb)

Science / Periodic Table of Elements / Terbium (Tb): Atomic number: 65, Atomic mass: 158.92534 g.mol -1, Electronegativity: 1.2, Density: 8.3 g.cm-3 at 20°C, Melting point: 1360 °C, Boiling point: 3041 °C, Vanderwaals radius: unknown, Ionic radius: u MORE

Thulium (Tm)

Science / Periodic Table of Elements / Thulium (Tm): Atomic number: 69, Atomic mass: 168.93 g.mol -1, Electronegativity: 1.2, Density: 9.3 g.cm-3 at 20°C, Melting point: 1545 °C, Boiling point: 1947 °C, Vanderwaals radius: unknown, Ionic radius: unkn MORE

Cerium (Ce)

Science / Periodic Table of Elements / Cerium (Ce): Atomic number: 58, Atomic mass: 140.12 g.mol -1, Electronegativity: 1.1, Density: 6.76 g.cm-3 at 20°C, Melting point: 799 °C, Boiling point: 3426 °C, Vanderwaals radius: 0.181 nm, Ionic radius: 0.1 MORE

Lutetium (Lu)

Science / Periodic Table of Elements / Lutetium (Lu): Atomic number: 71, Atomic mass: 174.97 g.mol -1, Electronegativity: 1.2, Density: 9.7 g.cm-3 at 20°C, Melting point: 1663 °C, Boiling point: 3395 °C, Vanderwaals radius: unknown, Ionic radius: unkn MORE

Links
Home
Glossary
Thesaurus