1 - 20
Cards (20)
- 1st: H - Hydrogen
- 2nd: He - Helium
- 3rd: Li - Lithium
- 4th: Be - Beryllium
- 5th: B - Boron
- 6th: C - Carbon
- 7th: N - Nitrogen
- 8th: O - Oxygen
- 9th: F - Flourine
- 10th: Ne - Neon
- 11th: N - Sodium
- 12th: Mg - Magnesium
- 13th: Al - Aluminium
- 14th: Si - Silicon
- 15th: P - Phosphorus
- 16th: S - Sulfur
- 17th: Cl - Chlorine
- 18th: Ar - Argon
- 19th: K - Potassium
- 20th: Ca - Calcium