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1. What is the most abundant element in the Earth's atmosphere?
A
Carbon
B
Oxygen
C
Nitrogen
2. What is the atomic number of carbon?
A
12
B
8
C
6
3. What is the symbol for gold on the periodic table?
A
Au
B
Cu
C
Ag
4. What is the only non-metal element that is a liquid at room temperature?
A
Chlorine
B
Bromine
C
Mercury
5. What is the lightest element?
A
Hydrogen
B
Carbon
C
Oxygen
6. What is the most reactive metal?
A
Lithium
B
Francium
C
Sodium
7. What is the most abundant element in the universe?
A
Carbon
B
Hydrogen
C
Oxygen
8. What is the symbol for iron on the periodic table?
A
Ag
B
Au
C
Fe
9. What is the atomic number of oxygen?
A
6
B
8
C
12
10. What is the only element that is a liquid metal at room temperature?
A
Sodium
B
Mercury
C
Potassium