New Scratcher Joined 6 years, 3 months ago Hong Kong
又是我 @1080GBA!可能有人會説:「哎! @1080GBA無處不在呀!」是啊!這個是 @1080GBA第65個賬號!我 @Pr-Praseodymium是The Periodic Table team 中其中一人Last element : @Ce-CeriumNext element : @Nd-Neodymium
Atomic number: 59Name: PraseodymiumSymbol:PrMass: 140.908