I don't even think there is a symbol for this..
Every element is given a symbol and so, scandium being an element, was also given one.
The three letter symbol is given on the basis of its atomic no. whereas the other symbols are given for historical reasons or properties.
The letter K is given to potassium.
104 Unq Unnilquadium, usually known as Rf Rutherfordium
Ca is just the first 2 letters of calcium. The 'a' distinguishes it from C (carbon). Some elements have symbols relating to their Latin name for example potassium 'K' named after the Latin name Kalium
ClO4- Note that this is not an "element" and hence doesn't have an "element symbol."
Sigificance of the Symbol of an Element :- 1. Symbol represents name of the element. 2. Symbol represents one atom of the element. 3. Symbol also represents one mole of atoms of the element. That is, symbol also represents 6.022 x 1023 atoms of the element. 4. Symbol represents a define mass of the element (equal to atomic mass expressed in grams).
It is because other elements with name starting from M were there like Manganese,So to clarify the element they Magnesium Mg and Manganese Mn.A later discovered element Meitnerium was given the synbol Mt.
There is no element with symbol a or A even
If present, it is usually given in superscript from before the element's symbol.
An atomic symbol represents a specific isotope of an element, including both the element symbol and the atomic mass number. A chemical symbol, on the other hand, is just the unique abbreviation for an element on the periodic table.
Take the element "Iron" then the symbol for the element is "Fe" and "Fe" is also the symbol for a single atom of the element in a chemical equation.