Engineered Labs Heritage Periodic Table of Elements, Made In USA, Acrylic Periodic Table With Real Samples

Product Information

This element has 16 isotopes with three isomers. It’s also the first divalent metal in the actinide series and has two bonding electrons, not three. Caesium is silvery white, soft, ductile, and the most alkaline and most electropositive element. Caesium is one of just three metals that are liquid at room temperature. It reacts explosively with cold water and with ice when the temperature is above -116°C. All chromium compounds are coloured and useful in a number of industrial applications. Chromium compounds are toxic and should be handled properly. Chromium is present in certain foods but toxic in excess.

Interactive Periodic Table of Elements - Fisher Sci Interactive Periodic Table of Elements - Fisher Sci

Phosphorus is insoluble in water and soluble in carbon disulfide, and it burns spontaneously in air. Phosphorus is poisonous, with a fatal dose of just 50mg. Keep white phosphorus under water and handle it with forceps to avoid burns. This element behaves like lutetium, is trivalent, and could be classified as the first 7th-period transition metal. Due to its electron configuration, it may have a volatility similar to lead. X-ray crystallographic data is not available for einsteinium because its intense radioactive decay interferes. However, it’s sometimes used to study accelerated aging, radiation damage, and targeted medical radiation treatments. This element is a dense, silvery-grey metal that reacts with oxygen, water vapor, and inorganic acids. It has 29 known radioisotopes, the most common being 231Pa, a decay product of uranium-235 and an alpha-emitter with a half-life of 32,700 years. Both natural and prepared compounds are widely used. Calcium oxide, when mixed with sand, hardens mortar and plaster, and calcium from limestone is a key ingredient in Portland cement. Other important compounds are carbide, chloride, cyanamide, hypochlorite, nitrate, and sulfide.Originally assessed as 0.7 by Pauling but never revised after other elements' electronegativities were updated for precision. Predicted to be higher than that of caesium. Liquid hydrogen is used in cryogenics and to study superconductivity. Isotopes deuterium and tritium are used as nuclear fusion reactor fuel. Tritium is produced by nuclear reactors and is used to make hydrogen bombs. Because hafnium has a good absorption cross section for thermal neutrons, excellent mechanical properties, and corrosion resistance, it’s used for reactor control rods. It’s also used in gas-filled and incandescent lamps. It’s a white, crystalline, and brittle metal with a pinkish tinge. The element occurs naturally in the ores bismuthinite (bismuth glance) and bismite. And when it’s heated in air, it produces a blue flame and forms yellow fumes.

Periodic table | Definition, Elements, Groups, Charges Periodic table | Definition, Elements, Groups, Charges

Bromine is used in fumigants, flameproofing agents, water purification compounds, dyes, medicines, sanitisers, and photography chemicals. Organic and inorganic bromine compounds also have important applications in many industries.Although recognised in compounds, sodium was first isolated in 1807. Sodium is fairly abundant in the sun and stars, the fourth most abundant element on Earth, and the most commonly found alkali metal.