Element at v1.0.0
69
7c535a4f7c1c5820620c10905b94236586103526947c3c85369120dd82d48469 · where else it appears
Data
{
"atomicMass": 168.93422,
"atomicNumber": 69,
"block": "f",
"boilingPointC": 1949.85,
"categoryId": "lanthanide",
"density": 9.32,
"discoverer": null,
"discoveryYear": "1879",
"electronConfiguration": "[Xe]6s2 4f13",
"electronegativity": 1.25,
"group": null,
"meltingPointC": 1544.85,
"name": "Thulium",
"period": 6,
"phase": "Solid",
"symbol": "Tm"
}History in this collection
- addedv1.0.0Jun 12, 2026this version