the number of known elements up till now is..........elements
chemical combination

Quiz
•
Science
•
7th Grade
•
Medium

Nesreen Hosny
Used 169+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
92
118
121
211
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Elements can be classified according to their properties and electronic structure into
Metals and non-metal
Metals only
Non-metals only
Metals,non-metals and noble gases
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Elements contain less than 4 electrons in outermost energy level
Non-metals
Metals
Inert gases
No correct answer
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Elements contain more than 4 electrons in outermost energy level
Metals
Non-metals
Nobel gases
No correct answer
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
..............is the only liquid metal element
Bromine
Mercury
Iron
Water
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
..................is the only liquid non-metal element
Bromine
Mercury
Iron
water
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
..........tend to lose electrons and change to positive ion during chemical reaction
Metals
Non-metals
Inert gases
No correct answer
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