{
  "name": "How many elements have atoms 0.1–0.5 nm across, by radius definition",
  "desc": "For each of three radius definitions: elements listed, how many have diameters of 0.1–0.5 nm, which fall below or above, and the smallest and largest.",
  "lic": "CC BY 4.0",
  "lic_url": "https://creativecommons.org/licenses/by/4.0/",
  "by": "Ants, Cells & Atoms",
  "url": "https://antscellsandatoms.com/scale/atom-size/",
  "from": [
    "media/atom-size-atomic-radii.csv"
  ],
  "how": "Compiled by Ants, Cells & Atoms from the data listed",
  "data_by": [
    "PubChem element records 1–96, Atomic Radius section, PubChem 2025 update, https://doi.org/10.1093/nar/gkae1059 (covalent radii from Cordero B et al. 2008, Dalton Transactions, https://doi.org/10.1039/b801115j; empirical radii from Slater JC 1964, The Journal of Chemical Physics, https://doi.org/10.1063/1.1725697; van der Waals radii from the Los Alamos National Laboratory periodic table; retrieved 2026-10-25)",
    "counts computed 2026-10-25 for this page"
  ]
}