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{
  "id": "69",
  "type": "Element",
  "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"
  }
}