ATOMOS

Flashcard
•
Chemistry
•
University
•
Hard
Manriky Cavalcanti
FREE Resource
Student preview

14 questions
Show all answers
1.
FLASHCARD QUESTION
Front
Um elemento se diferencia de outro principalmente pelo seu número de?
Back
prótons
2.
FLASHCARD QUESTION
Front
O número de massa representa
Back
Quantidade de prótons e nêutrons que o átomo possui
3.
FLASHCARD QUESTION
Front
Um isótopo é
Back
um átomo do mesmo elemento com diferente quantidade de nêutrons
4.
FLASHCARD QUESTION
Front
Mol é definido como: “A quantidade de matéria que contém tantos objetos (átomos, moléculas ou qualquer objeto a considerar) quanto o número de átomos em exatamente 12 g de 12C isotopicamente puro”
Back
verdadeiro
5.
FLASHCARD QUESTION
Front
Os dados que completam a linha de cor amarela na tabela são
Back
protons 14; nêutrons 16; elétrons 14; número atômico 14; número de massa 30; carga 0
6.
FLASHCARD QUESTION
Front
Os dados que completam a linha de cor azul são
Back
selênio 80; prótons 34; nêutrons 46; elétrons 30; número atômico 34; número de massa 80; carga 4+
7.
FLASHCARD QUESTION
Front
Em geral, os não-metais formam íons
Back
negativos
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