{"query": "Promethium (Pm) — element 61", "count": 5, "results": [{"id": "card_ref_el_061", "title": "Promethium (Pm) — element 61", "shelf": "chemistry", "surface": "secular", "snippet": "Atomic number 61. Symbol Pm. Standard atomic weight 145.0. The promethium atom carries 61 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_promethium", "title": "promethium", "shelf": "dictionary", "surface": "secular", "snippet": "promethium: (noun) a soft silvery metallic element of the rare earth group having no stable isotope; was discovered in radioactive form as a fission product of uranium — syn: Pm, atomic number 61", "authority_tier": "reference", "source": "WordNet 3.0, Princeton University (WordNet License)", "generated": false}, {"id": "card_src_word_pm", "title": "pm", "shelf": "dictionary", "surface": "secular", "snippet": "pm: (noun) an examination and dissection of a dead body to determine cause of death or the changes produced by disease — syn: autopsy, necropsy, postmortem, post-mortem, postmortem examination, post-m", "authority_tier": "reference", "source": "WordNet 3.0, Princeton University (WordNet License)", "generated": false}, {"id": "card_src_pron_promethium", "title": "promethium", "shelf": "pronunciation", "surface": "secular", "snippet": "promethium: pronounced (ARPABET) P R AH0 M IY1 TH IY2 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_word_atomic_number_61", "title": "atomic number 61", "shelf": "dictionary", "surface": "secular", "snippet": "atomic number 61: (noun) a soft silvery metallic element of the rare earth group having no stable isotope; was discovered in radioactive form as a fission product of uranium — syn: promethium, Pm", "authority_tier": "reference", "source": "WordNet 3.0, Princeton University (WordNet License)", "generated": false}]}