When you say, "chemical symbol," I assume you mean the symbol for an element as used in the formula of a compound.
Quite simply, there are well over 100 elements and only 26 letters, so we just plane ran out of letters.
A chemical symbol for an element is one or two letters. These are found on the Periodic Table of elements. The chemical symbol is an abbreviation of the chemical element name.Example: O is the chemical symbol for Oxygen.K is the chemical symbol for Potassium.Pb is the symbol for lead.He is the symbol for helium.
the strontium symbol in a periodic table is sr.
Iridium: Ir, atom number 77, mass 192.2 a.m.u.
A chemical symbol represents an element. A chemical formula represents a compund. a chemical formula is like this H2O, that is water, a chemical symbol is just this H, that is hydrogen.
A chemical symbol is just an abbreviation of that chemical's name while a formula will tell you how many of each different element are in a specific chemical compound.
Bromine vapor is chemically the same as bromine its just physically different so the symbol is still Br. :-)
In 'CH' the 'C' stands for carbon and the 'H' for hydrogen. However there is NO such compound with the chemical formulaCH ('symbol' is not correct in this sense), CH4 is the only one possible with 1 'C' and 1 'H'.
That is the chemical symbol of an element, such a H for hydrogen, Hg for mercury, etc.
Fe, just as anywhere else. The chemical symbols are international.
Ar is the symbol for the noble gas - argon.
It is just F and it's charge is 2-
It is NOT the chemical formula, but the chemical symbol. Xenon's chemical symbol is 'Xe'. Note the use of the capital 'X' and the small case 'e'. This is the agreed international standard for all chemical symbols. A formula refers to a molecule consisting of different elements.