TCA: Chemistry: ActinidesOnline version Match the element to the symbol by Elvira Trevino 1 Actinium 2 Thorium 3 Protactinium 4 Uranium 5 Neptunium 6 Plutonium 7 Americium 8 Curium 9 Berkelium 10 Californium 11 Einsteinium 12 Fermium 13 Mendelevium 14 Nobelium 15 Lawrencium