Количество протонов у атома кальция равно
элементы

Quiz
•
Chemistry
•
7th Grade
•
Medium
Marina Komarova
Used 21+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
16
32
15
20
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Атомная масса калия
39
40
39,9
40,1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
количество нейтронов в атоме фосфора
28
13
16
15
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
сколько электронов в атоме фтора?
19
18
10
9
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
N, Mg, S, Ba
барий, сера, азот, марганец
азот, марганец, сера, барий
азот, магний, сера, барий
сера, барий, азот, магний
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Zn, Cl, Sn, Na
цинк. хлор, сера, азот
цинк, хлор, олово, натрий
хлор, олово, цинк. натрий
цинк, хром, сера, водород
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Si, Al, O, Mn
кремний, алюминий, кислород, магний
сера, кислород, алюминий, марганец
кремний, алюминий, кислород, марганец
марганец, кислород. алюминий, кремний
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