Crear juego
Jugar Froggy Jumps
1. H
A
hydrogen
B
helium
C
Mercury
2. Li
A
lutetium
B
lanthanides
C
lithium
3. Na
A
sodium
B
nitrogen
C
neon
4. K
A
Potassium
B
Krypton
C
beryllium
5. Rb
A
Rhodium
B
Ruthenium
C
Rubidium
6. Cs
A
Chromium
B
Cesium
C
Calcium
7. Fr
A
fluorine
B
Iron
C
francium
8. Be
A
beryllium
B
barium
C
boron
9. What is the atomic number of carbon?
A
8
B
12
C
6
10. Which element has the symbol 'Na'?
A
Sodium
B
Nitrogen
C
Silver
11. What is the most abundant element in the Earth's atmosphere?
A
Oxygen
B
Carbon
C
Nitrogen
12. Which element is a noble gas?
A
Helium
B
Boron
C
Lithium
13. What is the symbol for gold?
A
Ag
B
Au
C
Cu
14. Which element is essential for human life?
A
Iron
B
Calcium
C
Oxygen
15. What is the atomic number of hydrogen?
A
3
B
1
C
2
16. Which element is a halogen?
A
Phosphorus
B
Chlorine
C
Sulfur
17. What is the symbol for carbon?
A
Ca
B
Co
C
C
18. Which element is a metalloid?
A
Silicon
B
Aluminum
C
Magnesium