Histoire & Art A transdisciplinary graph

Astronomy Chemical element

Tulio

Tulio (Tm) is a chemical element belonging to the category Inner transition metal, with atomic number 69 and atomic mass 168.9340 u. This sheet describes its fundamental properties, periodic position and physical characteristics.

Stays within its layer Astronomy

Neighbourhood in the graph

Above, what contains it; below, what it contains; on the right, what links it to another layer.

Astronomy · Chemical element

Thulium

EL1X

Identity

  • Name: Tulio
  • Symbol: Tm
  • Atomic number: 69
  • Atomic mass: 168.9340 u

Position in the periodic table

  • Group: 3
  • Period: 6
  • Category: Inner transition metal

Physico-chemical properties

  • Standard state: Solid
  • Melting point: Very high (800°C to 3500°C)
  • Density: High
  • Electron configuration: [Xe] 4f¹³ 6s²

Scientific description

Tulio is a chemical element with symbol Tm and atomic number 69. It belongs to the category of Inner transition metal and occupies group 3 and period 6. Its standard atomic mass is 168.9340 u.