
Ioni și molecule
Authored by CARMEN MATEI
Chemistry
7th - 8th Grade
Used 8+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Metalele formează ioni:
pozitivi
negativi
pozitivi și negativi
nu formează ioni
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Nemetalele formează ioni:
pozitivi
negativi
pozitivi și negativi
nu formează ioni
3.
MULTIPLE SELECT QUESTION
10 sec • 1 pt
Pentru a-și forma structuri stabile, atomii elementelor pot:
ceda electroni
accepta electroni
pune în comun electroni
împrumuta electroni
4.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Moleculele se formează prin:
punere în comun de electroni
cedare de electroni
acceptare de electroni
schimb de electroni
5.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
In molecule atomii sunt uniți prin:
legături covalente
legături ionice
legături metalice
depinde de tipul moleculei
6.
MULTIPLE SELECT QUESTION
10 sec • 1 pt
Pot exista molecule alcătuite din:
un atom
2 atomi
3 atomi
4 sau mai mulți atomi
2 ioni
7.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Covalența este dată de:
numărul de electroni puși în comun de atomi
numărul de electroni cedați de atomi
numărul de electroni acceptați de atomi
numărul de electroni schimbați de atomi
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