a565ac84aae06513…

Element
ID: 34359 bytesFirst seen Jun 12, 20261 collection

Fields

NameValue
atomicMass78.97
atomicNumber34
blockp
boilingPointC684.85
categoryIdreactive-nonmetal
density4.809
discoverernull
discoveryYear1817
electronConfiguration[Ar]4s2 3d10 4p4
electronegativity2.55
group16
meltingPointC220.5
nameSelenium
period4
phaseSolid
symbolSe

Canonical JSON

{
  "id": "34",
  "type": "Element",
  "data": {
    "atomicMass": 78.97,
    "atomicNumber": 34,
    "block": "p",
    "boilingPointC": 684.85,
    "categoryId": "reactive-nonmetal",
    "density": 4.809,
    "discoverer": null,
    "discoveryYear": "1817",
    "electronConfiguration": "[Ar]4s2 3d10 4p4",
    "electronegativity": 2.55,
    "group": 16,
    "meltingPointC": 220.5,
    "name": "Selenium",
    "period": 4,
    "phase": "Solid",
    "symbol": "Se"
  }
}

Appears in 1 collection

reference/periodic-table1 version · Jun 12, 2026

Full hash:a565ac84aae06513dd8be5915ec5af09675c0ac107d2668a2aa0ecfefb8be5bb