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Thulium is a chemical element; it has symbol Tm and atomic number 69. It is the thirteenth element in the lanthanide series of metals. Properties · History · Occurrence · Applications |
Chemical element, Thulium, information from authoritative sources. Look up properties, history, uses, and more. |
Atomic Number, 69 ; Atomic Mass, 168.934 atomic mass unit ; Number of Protons, 69 ; Number of Neutrons, 100 ; Number of Electrons, 69. |
Symbol of the thulium element is Tm. It is a metal which is traditionally considered to be one of the rare earth metals. It's atomic number 69. |
Name: thulium · Symbol: Tm · Atomic number: 69 · Relative atomic mass (Ar): 168.93422 (2) · Standard state: solid at 298 K · Appearance: silvery white ... |
Thulium is a chemical element with symbol Tm and atomic number 69. Classified as a lanthanide, Thulium is a solid at room temperature. |
Name: Thulium ; Symbol: Tm ; Atomic Number: 69 ; Atomic Mass: 168.9342 amu ; Melting Point: 1545.0 °C (1818.15 K, 2813.0 °F) |
Thulium is a chemical element of the periodic table with chemical symbol Tm and atomic number 69 with an atomic weight of 168.934 u and is classed as lanthanide ... |
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