Química Geral

Flashcard
•
Chemistry
•
8th Grade - University
•
Hard
Denise Grando
FREE Resource
Student preview

11 questions
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1.
FLASHCARD QUESTION
Front
Quais as partículas que estão no núcleo atômico?
Back
prótons e nêutrons
2.
FLASHCARD QUESTION
Front
Um elemento tem Z=25 , se sua carga é +3, quantos elétrons tem?
Back
22
3.
FLASHCARD QUESTION
Front
Um elemento "X" tem número atômico Z=16 e número de masa, A=35. Quantos nêutrons ele possui?
Back
19
4.
FLASHCARD QUESTION
Front
Quando diferentes átomos apresentam igual número de massa "A", como podemos chamá-lo?
Back
Isóbaros
5.
FLASHCARD QUESTION
Front
Dois elementos que são isótopos possuem igual número de____________.
Back
prótons
6.
FLASHCARD QUESTION
Front
Um átomo constituído de 11 prótons, 12 nêutrons e 11 elétrons apresenta, respectivamente, número atômico e número de massa iguais a:
Back
11 e 23
7.
FLASHCARD QUESTION
Front
Dadas as espécies químicas, quais são isótopos e quais são isóbaros, respectivamente? I = 48Cd112 II = 27Co60
III = 48Cd114
IV = 29Cu60
Back
I e III; II e IV
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