
Chimica 1D
Authored by Nicolas Colombarini
Science
9th Grade
Used 4+ times

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13 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un elettrone è una particella subatomica con carica:
neutra
positiva
negativa
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un elettrone è:
più pesante di un protone
più pesante di una molecola
pesante quanto un elettrone
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nel nucleo di un atomo è formato da:
neutroni e protoni
neutroni ed elettroni
elettroni e protoni
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In chimica la grandezza A corrisponde a:
numero di massa
numero atomico
peso atomico
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Il numero di massa si indica con il simbolo
Z
A
NM
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Una molecola di acqua è formata da:
due atomi di idrogeno ed uno di ossigeno
due atomi di ossigeno ed uno di idrogeno
da un atomo di idrogeno ed uno di ossigeno
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chi decide il tipo ed il nome dell'elemento?
numero atomico
numero di massa
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