Question

What is a symbol? What does it convey?

Answer 1

Hint :The temporary element symbols assigned to designate new or to-be-synthesized elements are the only exceptions to the one- to two-letter symbol rule. Temporary element symbols are made up of three letters that are based on the atomic number of the element. It expresses the precise identity of a chemical element in a concise and scientific manner. It also gives you the simplest approach to find out what an element's atomic number is. The method for remembering the elements in the periodic table.

Complete Step By Step Answer:
Chemical symbols are abbreviations for chemical elements, functional groups, and chemical
compounds that are used in chemistry. Chemical element symbols are typically composed of one or ​two letters from the Latin alphabet, with the first letter capitalised.
The following information is conveyed by an element's symbol:-
(i) It represents one element's atom: One atom of the element is represented by the symbol. The sign , for example, represents one atom of the element oxygen.
(ii) It represents the element's name: The element's name is represented by the symbol. The symbol, for example, stands for the element oxygen.
(iii) It represents one mole of the element's atoms: The sign of an element denotes one mole of that element's atoms; hence, the symbol of an element denotes $ 6.022 \times {10^{23}} $ atoms. The sign , for example, denotes one mole of oxygen, or $ 6.022 \times {10^{23}} $ atoms.
(iv) It represents the element's definite mass (atomic mass): The symbol for each element represents the element's definite mass, which is equal to the gram atomic mass. The symbol , for example, stands for $ 1{\text{ }}gram $ of oxygen atomic mass.

Note :
Each element is assigned a chemical symbol, such as $ H $ for hydrogen and $ O $ for oxygen. Chemical symbols usually consist of one or two letters. Every chemical symbol begins with a capital letter and ends with a lowercase letter. $ Mg $ is the proper symbol for magnesium, but mg, mG, and MG are incorrect. Take special care when writing chemical symbols.
It's not always clear which element a symbol represents. For example, the letters $ C $ and $ Li $ stand for carbon and lithium, respectively. However, the symbol can sometimes be derived from a name for the element that isn't an English word. $ W $ stands for tungsten and $ Na $ stands for sodium, for example.