Thulium (Tm) - 69 on the Periodic Table | Periodic Table

Standard IUPAC: Thulium • Symbol: Tm • Atomic Mass: 168.934219 u

Quick Factsheet: Thulium (symbol Tm, atomic number 69) is element 69 on the periodic table of elements. It has a standard atomic weight of 168.934219 u and an electron configuration of [Xe] 6s2 4f13. On the periodic table, Thulium is classified in period 6 and group Main.

1. Periodic Table Position of Thulium (69 on the Periodic Table)

Element Thulium has atomic number Z = 69, meaning it contains 69 protons in its atomic nucleus and 69 electrons in its neutral state. On the standard periodic table of elements, Thulium is located in period 6 and group Main.

2. Electron Configuration & Oxidation States (Thulium Charges & Configuration)

Full Electron Configuration: [Xe] 6s2 4f13

Common Oxidation States (Charges): 2,3c

3. Physical Properties & Atomic Mass (Thulium Atomic Mass)

Element Thulium has a standard atomic weight of 168.934219 u. Its melting point is 1818. K and boiling point is 2223. K. The Pauling electronegativity value is 1.25.

Comprehensive chemical properties and data for Thulium (Tm, Z=69).

Explore interactive 3D electron orbitals, isotopes, and properties on the periodic table: Open on Interactive Table 🚀

4. Related Elements in the Same Chemical Family

La (Z=57) Ce (Z=58) Pr (Z=59) Nd (Z=60) Pm (Z=61) Sm (Z=62)

5. Frequently Asked Questions about Thulium (FAQ)

What is the chemical symbol and atomic number of Thulium?

The chemical symbol of Thulium is Tm and its atomic number is 69.

What is the atomic mass and electron configuration of Thulium?

Thulium has a standard atomic mass of 168.934219 u and ground-state electron configuration of [Xe] 6s2 4f13.

What periodic table group and period does Thulium belong to?

Thulium is located in period 6 and group Main on the periodic table of elements.

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