Most elements symbols come from their latin names. There is more than one element with a name beginning in N so to distinguish nickel from nitrogen (you couldn't write them both as N) one is written as N and the other as Ni
The chemical symbol for Uranium is the letter "U".
The chemical symbol for chlorine is Cl, which is normal as many chemical symbols are derived from from the first letter and second or third letter of an element's name. the superscripted - sign means that the ion has an overall electric charge of -1.
Usually the first and second letter of element can determine it's chemical symbol.
The first letter is always capitalized, and the second letter is always lower case.
Chemical symbol
Xenon has the chemical symbol Xe.
Not always... There are chemical elements beginning with the same letter - for example Copper and Cobalt. However - every chemical symbol does consist of two letters.
The chemical symbol of a chemical element is derived fom the his name: the first letter or the first two letters.
A chemical symbol refers to a chemical element; the first letter of a symbol depends on the chemical element.
Capitalizing the second letter of chemical symbols would cause confusion. For example, if we capitalized the 'o' in Cobalt (Co) to appear as 'CO', then it would stand for two entirely different elements (carbon and oxygen).
The convention used for the chemical symbol of an element is so that you can determine the atomic mass.
The symbol of mendelevium, Md: the first and the second letters of the name.