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Hafnium
Hafnium is a chemical element that has the symbol Hf and atomic number 72. A lustrous, silvery gray tetravalent transition metal, hafnium resembles zirconium chemically and it is found in zirconium minerals.
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Element
Element
Lutetium
Lutetium is a chemical element with the symbol Lu and atomic number 71. A metallic element, lutetium usually occurs in association with yttrium and is sometimes used in metal alloys and as a catalyst in various processes.
Element
Ytterbium
Ytterbium is a chemical element with the symbol Yb and atomic number 70. A soft silvery metallic element, ytterbium is a rare earth of the lanthanide series and is found in the minerals gadolinite, monazite, and xenotime.
Element
Thulium
Thulium is a chemical element that has the symbol Tm and atomic number 69. A lanthanide element, thulium is the least abundant of the rare earths.
Element
Erbium
Erbium is a chemical element with the symbol Er and atomic number 68. A rare, silvery, white metallic lanthanide; Erbium is a solid in its normal state.
Element
Holmium
Holmium is a chemical element with the symbol Ho and atomic number 67. Part of the lanthanide series, holmium is a relatively soft and malleable silvery-white metallic element.
Element
Rubidium
Rubidium is a chemical element with the symbol Rb and atomic number 37. This alkali metal exhibits a silvery-white appearance and is highly reactive, belonging to group 1 of the periodic table.
Element
Europium
Europium is a chemical element with the symbol Eu and atomic number 63. It was named after the continent Europe.
Element
Samarium
Samarium is a chemical element with the symbol Sm and atomic number 62. Samarium is a rare earth metal, with a bright silver luster, that is reasonably stable in air; it ignites in air at 150 °C.
Element
Praseodymium
Praseodymium is a chemical element that has the symbol Pr and atomic number 59. Praseodymium is a soft silvery metal in the lanthanide group.
Element
Cerium
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.
Element
Sulfur
Sulfur or sulphur is the chemical element that has the atomic number 16. It is denoted with the symbol S. It is an abundant multivalent non-metal. Sulfur, in its native form, is a yellow crystalline solid.
Element
Phosphorus
Phosphorus is the chemical element that has the symbol P and atomic number 15. A multivalent nonmetal of the nitrogen group, phosphorus is commonly found in inorganic phosphate rocks.
Element
Silicon
Silicon is the chemical element that has the symbol Si and atomic number 14. A tetravalent metalloid, silicon is less reactive than its chemical analog carbon.
Element
Aluminium
Aluminium is a silvery white and ductile member of the boron group of chemical elements. It has the symbol Al; its atomic number is 13.
Element
Magnesium
Magnesium is a chemical element with the symbol Mg, the atomic number 12, and an atomic mass of 24.31. Magnesium is the ninth most abundant element in the universe by mass.