https://ptable.com/ 1 - H – Hydrogen, 2 - He – Helium, 3 - Li – Lithium,4 - Be – Beryllium,5 - B – Boron, 6 - C – Carbon,7 - N – Nitrogen,8 - O – Oxygen,9 - F – Fluorine,10 - Ne – Neon,11 - Na – Sodium,12 - Mg – Magnesium,13 - Al - Aluminum, Aluminium,14 - Si – Silicon ...