Relier Pairs Periodic Elements Quiz (D)Version en ligne Match theelement with the symbol and number par Meg-Everett Hann 1 Na 2 Sulfur 3 Silicon 4 Argon 5 Lithium 6 7 Mg 8 Carbon 9 10 Atomic number 5 11 Potassium 12 Chlorine Atomic Number 17 13 14 Hydrogen 15 Oxygen 16 Symbol= N 17 Neon 18 Helium 19 Atomic number 13 20 Fluorine Berylium Boron Phosphorus Atomic Number 8 Atomic Number 10 Sodium Calcium Magnesium Number 7 Atomic Number 2