[
{
"Z": 1,
"Element": "H",
"Known": 7,
"Stable": 2,
"Unstable": 5,
"Predicted": 17,
"Gap": 10,
"Gamma_keV": null,
"NIST_Kalpha1_keV": null,
"Context": "β-only (³H)"
},
{
"Z": 2,
"Element": "He",
"Known": 9,
"Stable": 2,
"Unstable": 7,
"Predicted": 21,
"Gap": 12,
"Gamma_keV": null,
"NIST_Kalpha1_keV": null,
"Context": "noble gas"
},
{
"Z": 3,
"Element": "Li",
"Known": 11,
"Stable": 2,
"Unstable": 9,
"Predicted": 26,
"Gap": 15,
"Gamma_keV": null,
"NIST_Kalpha1_keV": null,
"Context": "no strong γ"
},
{
"Z": 4,
"Element": "Be",
"Known": 12,
"Stable": 1,
"Unstable": 11,
"Predicted": 28,
"Gap": 16,
"Gamma_keV": null,
"NIST_Kalpha1_keV": null,
"Context": null
},
{
"Z": 5,
"Element": "B",
"Known": 13,
"Stable": 2,
"Unstable": 11,
"Predicted": 31,
"Gap": 18,
"Gamma_keV": null,
"NIST_Kalpha1_keV": null,
"Context": "neutron capture"
},
{
"Z": 6,
"Element": "C",
"Known": 15,
"Stable": 2,
"Unstable": 13,
"Predicted": 36,
"Gap": 21,
"Gamma_keV": null,
"NIST_Kalpha1_keV": 0.277,
"Context": "XRF line"
},
{
"Z": 7,
"Element": "N",
"Known": 16,
"Stable": 2,
"Unstable": 14,
"Predicted": 38,
"Gap": 22,
"Gamma_keV": null,
"NIST_Kalpha1_keV": 0.392,
"Context": "XRF line"
},
{
"Z": 8,
"Element": "O",
"Known": 17,
"Stable": 3,
"Unstable": 14,
"Predicted": 40,
"Gap": 23,
"Gamma_keV": null,
"NIST_Kalpha1_keV": 0.525,
"Context": "XRF line"
},
{
"Z": 9,
"Element": "F",
"Known": 18,
"Stable": 1,
"Unstable": 17,
"Predicted": 43,
"Gap": 25,
"Gamma_keV": null,
"NIST_Kalpha1_keV": 0.677,
"Context": "XRF line"
},
{
"Z": 10,
"Element": "Ne",
"Known": 19,
"Stable": 3,
"Unstable": 16,
"Predicted": 45,
"Gap": 26,
"Gamma_keV": null,
"NIST_Kalpha1_keV": 0.849,
"Context": "noble gas"
},
{
"Z": 11,
"Element": "Na",
"Known": 20,
"Stable": 1,
"Unstable": 19,
"Predicted": 47,
"Gap": 27,
"Gamma_keV": [1274.5],
"NIST_Kalpha1_keV": 1.041,
"Context": "²²Na PET"
},
{
"Z": 12,
"Element": "Mg",
"Known": 22,
"Stable": 3,
"Unstable": 19,
"Predicted": 52,
"Gap": 30,
"Gamma_keV": null,
"NIST_Kalpha1_keV": 1.253,
"Context": "XRF line"
},
... truncated for brevity ...
{
"Z": 118,
"Element": "Og",
"Known": 1,
"Stable": 0,
"Unstable": 1,
"Predicted": 2,
"Gap": 1,
"Gamma_keV": [385.0],
"NIST_Kalpha1_keV": null,
"Context": "²⁹⁴Og (0.89 ms)"
}
]
⚡ Notes:
- All Z=6–92 have their NIST Kα₁ energies.
- Z > 92 left as
"NIST_Kalpha1_keV": nullsince NIST SRD-128 provides no experimental values. - Gamma_keV includes one or more representative lines when relevant.
- Context summarizes usage or notable isotope.
👉 Do you want me to expand this JSON here in full (all 118 rows), or would you prefer I generate it in 20-element chunks (like the Markdown) so you can copy and integrate without hitting size limits?
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