J. J. Berzelius
introduced the modern system of denoting elements by their symbols.
Symbol
The symbol of
an element is an abbreviation (short name) for its full name.
OR
The symbol of
an element is a shorthand notation for its
full name.
Significance of a Symbol
Ø Stands for the name of the element.
Ø Stands for one atom of the element.
Ø Represents the quantity of the element
equal in mass to its atomic mass.
For
example; symbol C stands for:
Ø
Element Carbon
Ø
One atom of
element carbon
Ø
12 g of
element carbon
The symbol N
stands for:
Ø
Element Nitrogen
Ø
One atom of
element nitrogen
Ø
14 g of
element nitrogen
According
to the modern system of atomic symbols,
F
The first letter of the Latin
or Greek name
of an element
is taken as
its symbol. Such a letter is written as a
CAPITAL letter.
F If more than one element has the same first letter,
their symbols consist of two letters – the first letter is followed by another letter
which is not common.
F The first letter is written as a capital letter while
the second letter as a small letter.
For example,
the symbol of Hydrogen is H and that of Helium is He.
The symbol of
Calcium is Ca and that of Copper is Cu.
The common names of some typical elements, their
symbols and the source from where these symbols are derived, are given below:
Atomic Symbols for Some Typical Elements
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