Numărul atomic Z reprezintă
Atom. Element chimic
7th Grade
•10 Qs
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Atom. Element chimic
Quiz
•
Science
•
7th Grade
•
Hard
Mihaela M
Used 3+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Numărul de electroni din nucleul unui atom.
Numărul de neutroni din nucleul unui atom.
Numărul de molecule din nucleul unui atom.
Numărul de protoni din nucleul unui atom.
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Reprezintă simbolurile chimice ale unor metale
Ca
Pb
Br
K
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Elementul al cărui simbol nu începe cu litera S este
sulf
Sodiu
Siliciu
staniu
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Sunt metale alcaline (din grupa 1)
Litiu
Calciu
Potasiu
Aluminiu
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Sunt halogeni (elemente din grupa 17 - VII A)
siliciu
clor
fluor
brom
6.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Nu este un gaz nobil
neon
kripton
azot
heliu
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Au pe ultimul strat 2 electroni
beriliu
aluminiu
magneziu
bariu
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