Flag for the Element of Californium

Flag for the Element of Berkelium

Flag for the Element of Curium

Flag of the Element of Americium

Flag of the Element of Plutonium

Flag of the Element of Neptunium

Flag for the Element of Uranium

Flag of the Element of Protactinium

Flag of the Element of Thorium

Flag of the Element Actinium

Flag of the Element Radium

Flag of the Element of Francium

Flag of the Element of Radon

Flag of the Element of Astatine

Flag of the Element of Polonium

Flag of the Element of Bismuth

Flag of the Element of Lead

Flag of the Element of Thallium

Flag of the Element of Mecury

Flag of the Element of Gold

Flag of the Element of Platinum

Flag of the Element Iridium

Flag of the Element of Osmium

Flag of the Element of Rhenium

Flag of the Element of Tungsten

Flag of the Element Tantalum

Flag of the Element of Hafnium

Flag of the Element of Lutetium

Flag of the Element Ytterbium

Flag of the Element Thulium

Flag of the Element Erbium

Flag of the Element Holmium

Flag for the Element of Dysprosium

Flag for the Element of Terbium

Flag for the Element of Gadolinium

Flag for the Element of Europium

It just a coincidence that the scientific flag for Europium uses the main colours of the EU flag on its field: dark blue and yellow.  Blue, or indI go is Coded to 6 while yellow is Coded to 3, which is reflective of Europium's Z number.  

Flag for the Element of Samarium

Flag for the Element of Promethium

Flag for the Element of Neodymium

Flag for the Element of Praseodymium

Flag for the Element of Cerium

Flag for the Element of Lantanum

Flag for the Element of Barium

Flag for the Element of Cesium

Flag for the Element of Xenon

Flag for the Element of Iodine

Flag for the Element Tellurium

Flag for the Element of Antimony

Flag for the Element of Tin

Flag for the Element Indium