{"query": "Tantalum (Ta) — element 73", "count": 7, "results": [{"id": "card_ref_el_073", "title": "Tantalum (Ta) — element 73", "shelf": "chemistry", "surface": "secular", "snippet": "Atomic number 73. Symbol Ta. Standard atomic weight 180.94788. The tantalum atom carries 73 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_tantalum", "title": "tantalum", "shelf": "dictionary", "surface": "secular", "snippet": "tantalum: (noun) a hard grey lustrous metallic element that is highly resistant to corrosion; occurs in niobite and fergusonite and tantalite — syn: Ta, atomic number 73", "authority_tier": "reference", "source": "WordNet 3.0, Princeton University (WordNet License)", "generated": false}, {"id": "card_src_word_ta", "title": "ta", "shelf": "dictionary", "surface": "secular", "snippet": "ta: (noun) a hard grey lustrous metallic element that is highly resistant to corrosion; occurs in niobite and fergusonite and tantalite — syn: tantalum, atomic number 73", "authority_tier": "reference", "source": "WordNet 3.0, Princeton University (WordNet License)", "generated": false}, {"id": "card_src_drug_tantalum_carbonatum", "title": "Tantalum Carbonatum", "shelf": "medicine", "surface": "secular", "snippet": "Tantalum Carbonatum: a HUMAN OTC DRUG, pellet given by the oral route.", "authority_tier": "reference", "source": "openFDA / FDA NDC Directory (public domain)", "generated": false}, {"id": "card_src_pron_tantalum", "title": "tantalum", "shelf": "pronunciation", "surface": "secular", "snippet": "tantalum: pronounced (ARPABET) T AE1 N T AH0 L AH0 M. 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_fed_nasa_techdoc_19660004844", "title": "Chemical thermodynamics in nonferrous metallurgy. Volume III - Thermodynamics of tungsten, molybdenum, titanium, zirconium, niobium, and tantalum and of their more important compou", "shelf": "science", "surface": "secular", "snippet": "Chemical thermodynamics in nonferrous metallurgy. Volume III - Thermodynamics of tungsten, molybdenum, titanium, zirconium, niobium, and tantalum and of their more important compounds. A United States", "authority_tier": "reference", "source": "NASA technical documents (PD, 17 USC 105)", "generated": false}, {"id": "card_src_word_atomic_number_73", "title": "atomic number 73", "shelf": "dictionary", "surface": "secular", "snippet": "atomic number 73: (noun) a hard grey lustrous metallic element that is highly resistant to corrosion; occurs in niobite and fergusonite and tantalite — syn: tantalum, Ta", "authority_tier": "reference", "source": "WordNet 3.0, Princeton University (WordNet License)", "generated": false}]}