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Periodic Table Chemical Element Inspector (By Symbol)

Returns atomic number, atomic mass, electron configuration, melting/boiling points, density, and industrial applications for key chemical elements.

Call it (no API key)

GET https://api.agentdatahub.de/api/v1/call/periodic-table-element-lookup?symbol=Si&compact=1

Full metadata: without compact=1 · Markdown: format=llm · Only some fields: add &fields=a,b.c · MCP: tool call_api with {"apiId":"periodic-table-element-lookup"}

Parameters

Example response (live, compact)

{
  "apiId": "periodic-table-element-lookup",
  "data_freshness": "cached",
  "data": {
    "requested_symbol": "Si",
    "number": 14,
    "symbol": "Si",
    "name": "Silicon",
    "atomic_mass_u": 28.085,
    "category": "metalloid",
    "phase_stp": "Solid",
    "electronegativity_pauling": 1.9,
    "density_g_cm3": 2.329,
    "melting_point_k": 1687,
    "boiling_point_k": 3538,
    "electron_configuration": "[Ne] 3s2 3p2",
    "key_industrial_use": "CMOS microprocessors, AI GPU wafers, solar photovoltaic cells, optical fiber (SiO2)"
  },
  "source": "100% Platform Deterministic Compute / Reference Engine",
  "license": "IUPAC Public Domain Reference Data"
}

Source & license