Praseodymium is a soft, silvery, malleable, and ductile metal in the lanthanide group. It is somewhat more resistant to corrosion in air than europium, lanthanum, cerium, or neodymium, but it does dev ...
Cerium is a silvery metal, belonging to the lanthanide group. It resembles iron in color and luster, but is soft, and both malleable and ductile. Cerium has the third-longest liquid range of any eleme ...
Lanthanum is a soft, malleable, silvery white metal which has hexagonal crystal structure at room temperature. At 310 °C, lanthanum changes to a face-centered cubic structure, and at 865 °C into a b ...
Barium is a soft, silvery-white metal, with a slight golden shade when ultrapure.:2 The silvery-white color of barium metal rapidly vanishes upon oxidation in air yielding a dark gray oxide layer. Bar ...
Caesium compounds are rarely encountered by most people, but most are mildly toxic because of chemical similarity of caesium to potassium. Exposure to large amounts of caesium compounds can cause hype ...
Caesium is a very soft (it has the lowest hardness of all elements, 0.2 Mohs), very ductile, pale metal, which darkens in the presence of trace amounts of oxygen. It has a melting point of 28.4 °C (8 ...
Under standard conditions, iodine is a bluish-black solid appearing to sublimate into a noxious violet-pink gas, the colour due to absorption of visible light by electronic transitions between the hig ...
When crystalline, tellurium is silvery-white and when it is in pure state it has a metallic luster. It is a brittle and easily pulverized metalloid. Amorphous tellurium is found by precipitating it fr ...
Antimony is in the nitrogen group (group 15) and has an electronegativity of 2.05. As expected from periodic trends, it is more electronegative than tin or bismuth, and less electronegative than tellu ...
Physical properties Droplet of solidified molten tinTin is a malleable, ductile and highly crystalline silvery-white metal. When a bar of tin is bent, a crackling sound known as the tin cry can be hea ...
Indium is a very soft, silvery-white, highly ductile, relatively rare other metal with a bright luster. It is so soft (Mohs hardness 1.2) that the metal can be cut with a knife, as can sodium. It also ...
Physical properties Cadmium is a soft, malleable, ductile, bluish-white divalent metal. It is similar in many respects to zinc but forms complex compounds. Unlike other metals, cadmium is resistant to ...
Silver is produced from lighter elements in the Universe through the r-process, a form of nuclear fusion believed to take place during certain types of supernova explosions. This produces many element ...
Palladium belongs to group 10 in the periodic table, but has a very atypical configuration in its outermost electron shells compared to the other members of group 10 (see also niobium (41), ruthenium ...
Rhodium (Greek rhodon (??δον) meaning "rose") was discovered in 1803 by William Hyde Wollaston, soon after his discovery of palladium. He used crude platinum ore presumably obtained from South Am ...
