{"query": "Radon (Rn) — element 86", "count": 5, "results": [{"id": "card_ref_el_086", "title": "Radon (Rn) — element 86", "shelf": "chemistry", "surface": "secular", "snippet": "Atomic number 86. Symbol Rn. Standard atomic weight 222.0. The radon atom carries 86 protons in its nucleus; its place in the periodic table is fixed by that count. Verified reference data.", "authority_tier": "reference", "source": "Verified reference — chemistry", "generated": false}, {"id": "card_src_word_radon", "title": "radon", "shelf": "dictionary", "surface": "secular", "snippet": "radon: (noun) a radioactive gaseous element formed by the disintegration of radium; the heaviest of the inert gasses; occurs naturally (especially in areas over granite) and is considered a hazard to ", "authority_tier": "reference", "source": "WordNet 3.0, Princeton University (WordNet License)", "generated": false}, {"id": "card_src_word_rn", "title": "rn", "shelf": "dictionary", "surface": "secular", "snippet": "rn: (noun) a radioactive gaseous element formed by the disintegration of radium; the heaviest of the inert gasses; occurs naturally (especially in areas over granite) and is considered a hazard to hea", "authority_tier": "reference", "source": "WordNet 3.0, Princeton University (WordNet License)", "generated": false}, {"id": "card_src_pron_radon", "title": "radon", "shelf": "pronunciation", "surface": "secular", "snippet": "radon: pronounced (ARPABET) R EY1 D AA2 N. From the CMU Pronouncing Dictionary — the standard machine-readable pronunciations of North American English.", "authority_tier": "reference", "source": "CMU Pronouncing Dictionary (cmudict) — BSD-2-Clause, Carnegie Mellon", "generated": false}, {"id": "card_src_word_atomic_number_86", "title": "atomic number 86", "shelf": "dictionary", "surface": "secular", "snippet": "atomic number 86: (noun) a radioactive gaseous element formed by the disintegration of radium; the heaviest of the inert gasses; occurs naturally (especially in areas over granite) and is considered a", "authority_tier": "reference", "source": "WordNet 3.0, Princeton University (WordNet License)", "generated": false}]}