Chemical compounds
Authored by Sherif Louis
Science
7th Grade
Used 7+ times
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72 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
…..elements are the most stable elements
Metals
Non-metals
Nobel gases
Metaloids
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
All of the folowing elements are monovalent except …..
hydrogen
sodium
oxygen
chlorine
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
All the following are divalent except…
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When an atom loses,gains or shares with one electron, whose valency is…
monovalent
divalent
trivalent
tetravalent
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When an atom gains or shares by two electron, its valency will be…
monovalent
divalent
trivalent
tetravalent
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The valency of ferrous is ….
monovalent
divalent
trivalent
tetravalent
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
All of the following are nonmetals having more than one valency,except…
copper
phosphorus
sulpher
nitrogen
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