Element at v1.0.0
103
49d63f2e52eece6d618a4066e9b93cc9b1e436eb383fabf6ebf13f7f4b982f86 · where else it appears
Data
{
"atomicMass": 266.12,
"atomicNumber": 103,
"block": "f",
"boilingPointC": null,
"categoryId": "actinide",
"density": null,
"discoverer": null,
"discoveryYear": "1961",
"electronConfiguration": "[Rn]7s2 5f14 6d1",
"electronegativity": 1.3,
"group": null,
"meltingPointC": 1626.85,
"name": "Lawrencium",
"period": 7,
"phase": "Solid",
"symbol": "Lr"
}History in this collection
- addedv1.0.0Jun 12, 2026this version