{"query": "Copernicium (Cn) — element 112", "count": 1, "results": [{"id": "card_ref_el_112", "title": "Copernicium (Cn) — element 112", "shelf": "chemistry", "surface": "secular", "snippet": "Atomic number 112. Symbol Cn. Standard atomic weight 285.0. The copernicium atom carries 112 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}]}