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Potassium is a chemical element; it has symbol K (from Neo-Latin kalium) and atomic number 19. It is a silvery white metal that is soft enough to easily cut with a knife. [9] Potassium metal reacts rapidly with atmospheric oxygen to form flaky white potassium peroxide in only seconds of exposure.
The Latin term, during the Roman Empire, was aes cyprium; aes was the generic term for copper alloys such as bronze. Cyprium means "Cyprus" or "which is from Cyprus", where so much of it was mined; it was simplified to cuprum and then eventually Anglicized as "copper" (Old English coper/copor). · Symbol Cu is from the Latin name cuprum ("copper").
118 chemical elements have been identified and named officially by IUPAC.A chemical element, often simply called an element, is a type of atom which has a specific number of protons in its atomic nucleus (i.e., a specific atomic number, or Z).
Ruthenium is from the Latin name for the region including Belarus, Ukraine, and Russia. [29] Lutetium is named after Lutetia, the Latin name for Paris. Copper's name comes from an Old English word derived from the Latin name for the island of Cyprus. [30] The names of both magnesium and manganese derive from the Greek region of Magnesia. [31]
K is the chemical symbol for element potassium (from its Latin name kalium). Triangle K. In chess notation, the letter K represents the King (WK for White King, BK for Black King). In baseball scoring, the letter K is used to represent a strikeout.
Name given to 230 Th, an isotope of thorium identified in the decay chain of uranium. MsTh 1: Mesothorium 1: 88: Name given at one time to 228 Ra, an isotope of radium. MsTh 2: Mesothorium 2: 89: Name given at one time to 228 Ac, an isotope of actinium. Pa: Protactinium: 91: From the Greek protos and actinium. Name restricted at one time to 231 ...
Some elements have multiple names, for instance, potassium is known as pô-tát and kali (from kalium, the element's Latin name). Update in 2018 General Education Program, chemistry section: [ 8 ] (At page 50)
The binomial name often reflects limited knowledge or hearsay about a species at the time it was named. For instance Pan troglodytes, the chimpanzee, and Troglodytes troglodytes, the wren, are not necessarily cave-dwellers. Sometimes a genus name or specific descriptor is simply the Latin or Greek name for the animal (e.g. Canis is Latin for ...