Hydrofluoric acid can dissolve glass and is used to etch the glass in light bulbs and in other products. Sodium fluoride is used in toothpaste and in drinking water to prevent dental cavities. Fluoro-chemicals such as Teflon used as high-temperature plastics are made of fluorine. Fluorine and its compounds, mostly uranium hexafluoride are used in processing nuclear fuel. It quickly reacts mostly with all other elements. Fluorine is a very pale yellow-green, highly toxic, highly corrosive, flammable gas with a pungent odor, and extremely reactive gas of all the elements. Its atomic number is 9 and the atomic weight is 19. Gallium is considered a technology-critical element. Gallium is also used in the production of artificial jewelry. Semiconducting gallium nitride and indium gallium nitride produce blue and violet light-emitting diodes (LEDs) and diode lasers. Gallium is mostly used in semiconductors, electronics.

However, its boiling point is quite high (2,229☌) which is useful in high-temperature thermometers. Gallium is used in alloys with low melting points. Elemental gallium is a liquid at temperatures greater than 29.76 ☌ above room temperature, but below the normal human body temperature of 37 ☌. Its atomic number is 31 and the atomic weight is 69.72. It is also used the production of electricity, in electronics and the caesium compounds are used in organic chemistry. The largest application of the element has been as drilling fluids in petroleum exploration. The most important use of Cesium is in atomic clocks that are a vital part of the internet and mobile phone networks, as well as Global Positioning System (GPS) satellites. Cesium is the most reactive of all metals which pyrophoric and reacts with water even at -116 ☌. It is a soft, silvery-golden metal with a melting point of 28.5 ☌, which makes it one of the only five elemental metals rubidium, gallium, mercury, and francium that are liquid around room temperature. Its atomic number is 55 and the atomic weight is 132.9. Here are ten strange elements from the periodic table. There are some strange elements in this periodic table, which contains 118 elements, and those elements behave differently in many ways that scientists could never have predicted. It is a unique tool, enabling scientists to predict the appearance and properties of matter on the Earth and in the rest of the universe. There you can find the metals, semi-conductor(s), non-metal(s), inert noble gas(ses), Halogens, Lanthanoides, Actinoids (rare earth elements) and transition metals.The periodic table of chemical elements is one of the most significant achievements in science, which is the essence not only of chemistry but also of physics and biology. Please note that the elements do not show their natural relation towards each other as in the Periodic system. The first chemical element is Hydrogen and the last is Ununoctium. The chemical elements ofįor chemistry students and teachers: The tabular chart on the right is arranged by Atomic number. This list contains the 118 elements of chemistry.

Separation and Concentration Purification RequestĬhemical elements listed by atomic number The elements of the periodic table sorted by atomic numberĬlick on any elements name for further chemical properties, environmental data or health effects.Plant Inspection & Process Optimalisation.

A list of chemical elements