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{“questions”:{“av4we”:{“id”:”av4we”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nVeterinaria 2002\r\n\r\n \r\n\u201cL\u2019uranio, che appartiene al gruppo dei cosiddetti attinidi (una famiglia di 14 elementi analoga a quella dei lantanidi), \u00e8 uno degli elementi radioattivi naturali che pi\u00f9 comunemente …

{“questions”:{“ss5gu”:{“id”:”ss5gu”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nOdontoiatria 2002\r\n\r\n \r\nLa differenza tra gli isotopi 127 e 131 dello iodio consiste nel fatto che:\r\n“,”desc”:””,”hint”:””,”answers”:{“cevh9”:{“id”:”cevh9″,”image”:””,”imageId”:””,”title”:”A) il primo possiede 4 elettroni in meno”},”w8pua”:{“id”:”w8pua”,”image”:””,”imageId”:””,”title”:”B) il primo possiede 2 protoni e …

{“questions”:{“sakvj”:{“id”:”sakvj”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nOdontoiatria 2002\r\n\r\n \r\nQuanti elettroni, protoni e neutroni ha, nell\u2019ordine, lo ione H\u2012? \r\n“,”desc”:””,”hint”:””,”answers”:{“nxvh7”:{“id”:”nxvh7″,”image”:””,”imageId”:””,”title”:”A) 2 1 0 “,”isCorrect”:”1″},”19j67″:{“id”:”19j67″,”image”:””,”imageId”:””,”title”:”B) 2 1 1 “},”4lm81”:{“id”:”4lm81″,”image”:””,”imageId”:””,”title”:”C) 0 1 1 “},”2dbn3”:{“id”:”2dbn3″,”image”:””,”imageId”:””,”title”:”D) 1 1 2 “},”b1hfj”:{“id”:”b1hfj”,”image”:””,”imageId”:””,”title”:”E) …

{“questions”:{“48tf3”:{“id”:”48tf3″,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nMedicina 2002\r\n\r\n \r\nUn litro di CO e un litro di CO2, nelle stesse condizioni di temperatura e pressione: \r\n“,”desc”:””,”hint”:””,”answers”:{“3kxsd”:{“id”:”3kxsd”,”image”:””,”imageId”:””,”title”:”A) contengono lo stesso numero di atomi “},”kn4yb”:{“id”:”kn4yb”,”image”:””,”imageId”:””,”title”:”B) contengono lo stesso …

{“questions”:{“dgy83”:{“id”:”dgy83″,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nVeterinaria 2002\r\n\r\n \r\n\u201cNel nucleo, carico positivamente, risiede praticamente tutta la massa dell\u2019atomo; il nucleo \u00e8 costituito da un certo numero di protoni, che sono i portatori della carica positiva …

{“questions”:{“lbd9q”:{“id”:”lbd9q”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nOdontoiatria 2001\r\n\r\n \r\nQuale delle seguenti affermazioni \u00e8 corretta (p.at. N = 14 u.m.a.)?\r\n“,”desc”:””,”hint”:””,”answers”:{“yk8yi”:{“id”:”yk8yi”,”image”:””,”imageId”:””,”title”:”A) 28 molecole di N2 pesano 1 g”},”sq9je”:{“id”:”sq9je”,”image”:””,”imageId”:””,”title”:”B) 28 moli di N2 pesano 1 g”},”43xdz”:{“id”:”43xdz”,”image”:””,”imageId”:””,”title”:”C) Una mole …

{“questions”:{“8vznt”:{“id”:”8vznt”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nMedicina 2000\r\n\r\n \r\nLa differenza tra gli isotopi 18 e 16 dell’ossigeno consiste nel fatto che:\r\n“,”desc”:””,”hint”:””,”answers”:{“jknji”:{“id”:”jknji”,”image”:””,”imageId”:””,”title”:”A) il primo possiede due protoni in meno”},”axi9t”:{“id”:”axi9t”,”image”:””,”imageId”:””,”title”:”B) il primo possiede due neutroni in pi\u00f9″,”isCorrect”:”1″},”k3exi”:{“id”:”k3exi”,”image”:””,”imageId”:””,”title”:”C) …

{“questions”:{“27iq2”:{“id”:”27iq2″,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nMedicina 2000\r\n\r\n \r\nIl numero di massa di un atomo \u00e8 27; il numero atomico \u00e8 13; i neutroni contenuti nel nucleo sono:“,”desc”:””,”hint”:””,”answers”:{“ctk49”:{“id”:”ctk49″,”image”:””,”imageId”:””,”title”:”A) 14″,”isCorrect”:”1″},”thrdw”:{“id”:”thrdw”,”image”:””,”imageId”:””,”title”:”B) 13″},”453nf”:{“id”:”453nf”,”image”:””,”imageId”:””,”title”:”C) 20″},”lntnk”:{“id”:”lntnk”,”image”:””,”imageId”:””,”title”:”D) 40″},”y6zsy”:{“id”:”y6zsy”,”image”:””,”imageId”:””,”title”:”E) 8″}}}},”results”:{“rbt2c”:{“id”:”rbt2c”,”title”:””,”image”:””,”imageId”:””,”min”:”0″,”max”:”1″,”desc”:” \r\nIl numero …

{“questions”:{“ac50h”:{“id”:”ac50h”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nMedicina 1999\r\n\r\n \r\n\”Intorno al 1930 l’esistenza del neutrone era gi\u00e0 stata prevista teoricamente, sulla base dell’osservazione che non tutti gli atomi di un dato elemento hanno la stessa massa; …

{“questions”:{“0ilrr”:{“id”:”0ilrr”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nOdontoiatria 1997\r\n\r\n \r\nChe cosa \u00e8 l’acqua pesante?\r\n\r\n”,”desc”:””,”hint”:””,”answers”:{“dbfha”:{“id”:”dbfha”,”image”:””,”imageId”:””,”title”:”A) L’acqua con due atomi di deuterio”,”isCorrect”:”1″},”0s3r1″:{“id”:”0s3r1″,”image”:””,”imageId”:””,”title”:”B) Una soluzione concentrata di vari isotopi”},”o72f0″:{“id”:”o72f0″,”image”:””,”imageId”:””,”title”:”C) L’acqua surriscaldata oltre 100 gradi \u00b0C”},”mqe6d”:{“id”:”mqe6d”,”image”:””,”imageId”:””,”title”:”D) L’acqua con ossigeno di …