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periodic tabel
| Question | Answer |
|---|---|
| hydrogen | H |
| helium | He |
| lithium | Li |
| beryllium | Be |
| carbon | C |
| nitrogen | N |
| oxygen | O |
| fluorine | F |
| neon | Ne |
| sodium | Na |
| magnesium | Mg |
| aluminium | Al |
| silicon | Si |
| phosphorus | P |
| sulfur | S |
| chlorine | Cl |
| argon | Ar |
| potassium | K |
| calcium | Ca |
| scandium | Sc |
| titanium | Ti |
| chromium | Cr |
| manganese | Mn |
| iron | Fe |
| nickle | Ni |
| copper | Cu |
| zinc | Zn |
| gallium | Ga |
| bromine | Br |
| strontium | Sr |
| silver | Ag |
| tin | Sn |
| iodine | I |
| barium | Ba |
| gold | Au |
| mercury | Hg |
| lead | Pb |