The existence of Gallium was proposed in 1871 by Russian chemist Dmitri Mendeleev, who named it, based on its position in the periodic table, “eka-aluminum”. He also predicted it’s melting point, density, oxide character and bonding in chloride, that were all similar to the real properties of Gallium. Gallium was discovered by the French chemist Paul Emile Lecoq de Boisbaudran in 1875 in an examination of a sphalerite sample, and found it by its characteristic spectrum, its two violet lines. Lecoq named the element “gallia”, from the Latin word Gallia meaning Gaul, after his native land of France; he also named the element after himself (“le coq” is french for “the rooster”and the Latin word for rooster is “gallus”). From its discovery until the era of semiconductors, Galliums main uses were in high-temperature thermometric applications and in preparation of metal alloys with unusual properties of …show more content…
Pure Gallium is a silvery-color and in its solid form fractures a lot like glass. When solidifying, it can expand by 3.1% and is stored in glass or metal containers so that the container does not break apart. Gallium shares a higher-density liquid state with materials like water, silicon, germanium, bismuth, and plutonium. It alloys easily with other metals, and is used in small quantities as a plutonium-gallium alloy in the cores of nuclear bombs to help stabilize the plutonium crystal structure. The melting point of Gallium is about 85 degrees fahrenheit, just above average room temperature. its unique melting point allows it to melt in one's hand, then re-solidify when removed. Gallium more than likely will supercool below its freezing point. It is one of the metals, like mercury, that is able to be liquid at room temperature, and therefore be used in metal-in-glass high-temperature thermometers. Unlike mercury though, it has a low vapor pressure at high
Vanadium was first discovered by a Mexican chemist named Andres Manuel Del Rio. He sent a sample and a letter to The Institute of France in Paris, France. Unfortunately, the letter was lost in a ship wreck. So only the sample made it to the institute. Rio had first named this metal erythronium.
As previously stated, mercury is number 80 on the periodic table of elements. It is a metal, a transition metal to be exact. It has a symbol of “Hg”, an atomic mass of 200.59, and there are 7 known stable isotopes
When solid gold reaches the melting point of 1947.52 degrees it then become a liquid. while gold is in the liquid state the particles move at a clam rate because the particles are more evenly spread out. But when pressure is applied to to this then particles will move at a faster rate because they are being pressed
solar system. The element Hg is used in thermometers and barometers and is also used a
(n.d.), silver has many industrial uses. It accounts for more than half of the mineral demand worldwide in the last five years. Silver’s physical strength, brilliance, softness, and flexibility make it easy to use in just about anything. People have used it in jewelry, tableware, and fine arts for many years. Silver is also used in some industrial applications because of its conductivity; silver has the highest electricity and heat conductance than any other element, and its sensitivity to light and its anti-bacterial qualities. Today silver is used it batteries, dentistry, glass coatings, LED chips, medicine, nuclear reactors, photography, solar energy, RFID chips, semiconductors, touch screens, water purifications, wood preservatives, and it has many more uses. The biggest consumers of silver for industrial uses in the past ten years have been the United States, Canada, China, India, Japan, South Korea, Germany, and Russia (What is silver used for in industry?,
Thallium is a metal located in family 13 and period 6. Ti represents the atomic symbol for Thallium. It’s atomic number is 81, while it’s atomic mass is 204.38 or just 204. There are 81 protons and electrons and 124 neutrons. 5 energy levels can be found in this element; they consist of 2 in the first, 8 in the second, 18 in the third, 32 in the fourth, and 3 in the fifth. Due to the last energy level having 3 electrons, that would also the the number of valence electrons it has. This element was founded by Sir William Crooke in 1861. In 1862, his Crooke and a French chemist Claude-Auguste Lamy concluded thallium to be metal isolating it.
Helium is very light so it is used in things such as balloons and zeppelins as is lighter than air so rises above it. Neon is also well known for helping make neon signs because when an electrical current is passed through it will glow an orangey red colour. Argon is used in lightbulbs as it does not react with the metal filament used in light bulbs as it is very inert. Xenon and Krypton are used in fluorescent light bulbs and also some photography equipment as it emits a very bright white light. Radon is used in chemotherapy to help cure cancer.
To begin with, germanium is used in the manufacture of wide-angle camera lenses. The element gives special properties to the glass. Since, germanium has traits that are similar to silicon and tin, the semiconductor industry uses germanium is used to make transistors for use in electronic devices. Germanium is also used to create alloys and as a phosphor in fluorescent lamps. In other words, germanium is used to make camera lenses for electronic
Tsavorite garnets are shiny green young gemstones with a reasonably long geological history. They were first discovered in 1967 by a British geologist named Campbell R. Bridges in the north-east of Tanzania Mountains. Bridges came across strange bumps of rock and inside these objects were found to be some green grains and crystal fragments. Once gemmological examinations had been done on the rock, Bridge realised that he had discovered a green grossularite, which is a known mineral belonging to the garnet gemstone group.
Lawrencium is number 103 on the periodic table Lawrencium got its named after Ernest O. Lawrence the man who discovered the cyclotron a device used to to discover many artificial radioactive elements , was also found in the Lawrence Radiation Laboratory in Berkeley California 1961. This element is the most stable isotope ,Lawrencium has a half life of about 4 hours . Only tiny amounts of Lawrencium have been produced so there no use for it outside of scientific research , the atoms of the element is very small and by Lawrencium having a low half life it does not 't really give scientists a chance to research the element so this means scientists really do not know much about this element . Lawrencium boiling point is 2,960 degrees fahrenheit
Mercury, represented by symbol Hg, is a naturally occurring element in the Earth’s crust. It is the only metal that is a liquid at standard temperatures and pressure. It is a heavy silver transition metal, with an atomic weight of 200.59 and atomic number 80. Mercury is found in the air, water, and soil; it can exist as metallic mercury, inorganic or organic mercury compounds. Metallic mercury is stable; it is barely reactive with its surrounding. Also, mercury has a high boiling point and is a poor conductor of heat and electricity. Due to its distinctive physical properties mercury is commonly used in thermometers, barometers, light bulbs, and other scientific instruments. Historically, mercury has been circulating as early as 1500 BC in Egyptian Tombs. Mercury has been utilized to treat all kinds of sicknesses including yellow fever and malaria in the 1500s. During the 1800s
Osmium is a grey-white metal (Image 1), which is also very hard and brittle, and of the platinum metals, it has the highest melting point therefore making it difficult at both fusing and casting. Atomic number 76 Atomic weight 190.2 Melting point 3033°C, 3,306°K (5,432°F) Boiling point 5,012°C, 5,285°K (9,032°F) Specific gravity 22.48 per cubic centimeter (20°C) Oxidation states +2, +3, +4, +6, +8 Table 1. Osmium (Os) atomic number and weight. Also its determined melting and boiling point. Osmium has the highest boiling point of any platinum metal.
4,892F is the boiling point of gold. The melting point is 1,948F. At room temperature ,gold is a solid metal. Gold is very malleable and ductile. Gold is not very reactive. Sliver is also an transition metal and solid at room temperature. The Melting point is 1,763.2 degrees Fahrenheit and its is Boiling point 3,924 F. silver is malleable and , not very reactive. Bronze is made of up mainly copper and a little bit of tin. Copper is a Solid at room temperature. It has a boiling point of 4644F and a melting point of 1984.32F. Copper is malleable and is not very
n the year of 1879,Swedish chemist Lars Fredrik Nilson discovered an element called Scandium.Scandium was found in Uppsala,Sweden.Nilson was studying the rare earth metals and tried to divide the element ytterbium with using euxenite and gadolinite.A part of his method needed the preparation materials which reacted to form erbium nitrate.Nilson added heat to the nitrate and found that his sample had small quantities of a element no one has ever heard of with a low atomic weight.That unknown element soon became Scandium!Soon after his discovery,Nilson started studying the element and determined that Scandium’s atomic weight is about 44.In the year of 1937,Metallic Scandium was first prepared by Fischer and his collegaues.They performed electrolysis
The first point to note is that ‘inventor’ is a very ambiguous term. Is this the first person to think, to document, to patent, or to produce? The second point is that stainless steel wasn’t truly defined until 1911, so are we to cast aside those chromium-iron alloys that