| Sum | Answer | % Correct |
|---|---|---|
| Lithium + Neon | Aluminium | 90%
|
| Calcium + Zinc | Tin | 80%
|
| Helium + Beryllium | Carbon | 70%
|
| Silicon + Phosphorus | Copper | 60%
|
| Tin + Iodine | Lawrencium | 60%
|
| Sodium + Iron | Rubidium | 60%
|
| Sulfur + Chlorine | Arsenic | 40%
|
| Krypton + Technetium | Gold | 40%
|
| Nickel + Francium | Moscovium | 40%
|
| Germanium + Iodine | Astatine | 30%
|
| Caesium + Barium | Roentgenium | 30%
|
| Nickel + Platinum | Seaborgium | 30%
|
| Titanium + Manganese | Silver | 30%
|
| Yttrium + Niobium | Mercury | 20%
|
| Strontium + Barium | Plutonium | 20%
|