Chemical Combination

Quiz
•
Science
•
7th Grade
•
Easy
Randa Hassan
Used 4+ times
FREE Resource
8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The number of known elements u till now is .................... elements.
92
118
121
211
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
All metals are solid elements, except .................
sodium
magnesium
mercury
aluminium
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Oxygen is from ....................
metal elements
nonmetal elements
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When an atom of an element loses one electron or more, it changes into a.................
negative ion
positive ion
neutral atom
no correct answer
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
All of nonmetals don't conduct electricity, except ..................
bromine
aluminium
graphite
mercury
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
All of these elements can participate in chemical reactions, except ....................
sodium
neon
hydrogen
nitrogen
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nonmetals have more than 4 electrons in their outer shells.
True
False
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The molecules of noble gases are diatomic molecules.
True
False
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