It is the 4th hardest element after carbon, boron, and chromium. The chemical symbol for Argon is Ar. The chemical symbol for Manganese is Mn. The chemical symbol for Ruthenium is Ru. It has the highest melting point of all metals, 3,410° C (6,170° F), and it has high conductivity for electricity. These condensers use tubes that are usually made of stainless steel, copper alloys, or titanium depending on several selection criteria (such as thermal conductivity or corrosion resistance). Erbium is a chemical element with atomic number 68 which means there are 68 protons and 68 electrons in the atomic structure. The chemical symbol for Indium is In. A freshly exposed surface of pure copper has a reddish-orange color. It is obtained chiefly from the mineral cassiterite, which contains tin dioxide. A crystal lattice is a repeating pattern of mathematical points that extends throughout space. It readily forms hard, stable carbides in alloys, and for this reason most of world production of the element (about 80%) is used in steel alloys, including high-strength alloys and superalloys. Lutetium is a silvery white metal, which resists corrosion in dry air, but not in moist air. The chemical symbol for Americium is Am. It is this repeated pattern which control properties like strength, ductility, density, conductivity (property of conducting or transmitting heat, electricity, etc. Lead is soft and malleable, and has a relatively low melting point. Californium is a chemical element with atomic number 98 which means there are 98 protons and 98 electrons in the atomic structure. Lawrencium is the final member of the actinide series. Tungsten is an intrinsically brittle and hard material, making it difficult to work. Lead has the highest atomic number of any stable element and concludes three major decay chains of heavier elements. Its abundance in rocky planets like Earth is due to its abundant production by fusion in high-mass stars. The chemical symbol for Calcium is Ca. Discoverer: Marinsky, Jacob A. and Coryell, Charles D. and Glendenin, Lawerence. The chemical symbol for Radium is Ra. Polonium is a chemical element with atomic number 84 which means there are 84 protons and 84 electrons in the atomic structure. Rubidium is a chemical element with atomic number 37 which means there are 37 protons and 37 electrons in the atomic structure. Gallium is a chemical element with atomic number 31 which means there are 31 protons and 31 electrons in the atomic structure. Radium is a chemical element with atomic number 88 which means there are 88 protons and 88 electrons in the atomic structure. Tungsten Properties. The chemical symbol for Silver is Ag. Astatine is the rarest naturally occurring element on the Earth’s crust. Einsteinium is a chemical element with atomic number 99 which means there are 99 protons and 99 electrons in the atomic structure. Zirconium is a lustrous, grey-white, strong transition metal that resembles hafnium and, to a lesser extent, titanium. Tungsten processing, preparation of the ore for use in various products.. Tungsten exhibits a body-centred cubic (bcc) crystal lattice. Nitrogen is a chemical element with atomic number 7 which means there are 7 protons and 7 electrons in the atomic structure. The bulk properties of astatine are not known with any certainty. Europium is one of the least abundant elements in the universe. In nuclear reactors, promethium equilibrium exists in power operation. It rarely occurs in its elemental state or as pure ore compounds in the Earth’s crust. Iron is a metal in the first transition series. The elemental metal is rarely found in nature, but once isolated artificially, the formation of an oxide layer (passivation) stabilizes the free metal somewhat against further oxidation. The chemical symbol for Oxygen is O. Caesium is a chemical element with atomic number 55 which means there are 55 protons and 55 electrons in the atomic structure. Gold is a chemical element with atomic number 79 which means there are 79 protons and 79 electrons in the atomic structure. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas, the first in the noble gas group in the periodic table. Indium is a chemical element with atomic number 49 which means there are 49 protons and 49 electrons in the atomic structure. The chemical symbol for Platinum is Pt. The Crystal Vaults Comprehensive Illustrated Guide to Crystals. Commercially, thallium is produced as a byproduct from refining of heavy metal sulfide ores. Tungsten is a chemical element with atomic number 74 which means there are 74 protons in its nucleus.Total number of protons in the nucleus is called the atomic number of the atom and is given the symbol Z.The total electrical charge of the nucleus is therefore +Ze, where e (elementary charge) equals to 1,602 x 10-19 coulombs. The chemical symbol for Zinc is Zn. The symbol for tungsten, W, comes from tungsten’s Latin name Wolfram. Pure germanium is a semiconductor with an appearance similar to elemental silicon. Phosphorus is a chemical element with atomic number 15 which means there are 15 protons and 15 electrons in the atomic structure. Rhenium is a silvery-white, heavy, third-row transition metal in group 7 of the periodic table.