The meaning is 5 oxygen atoms.
ClO4- Note that this is not an "element" and hence doesn't have an "element symbol."
There are 5 oxygen atoms in O5. Each molecule of O5 contains 5 oxygen atoms.
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.
B is the symbol for which element?Boron
Potassium, with an Atomic Number of 19, is designated by the symbol 'K'.
There is no element with the symbol O5 on the periodic table. Oxygen has the symbol O and is located in group 16, period 2 of the periodic table.
o5 is not a number but an alphanumeric string.
ClO4- Note that this is not an "element" and hence doesn't have an "element symbol."
The symbol of helium is he
There is no element with symbol a or A even
There are 5 oxygen atoms in O5. Each molecule of O5 contains 5 oxygen atoms.
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.
O is the the symbol of the element oxygen.
B is the symbol for which element?Boron
The element symbol for barium is Ba.
The symbol for the element Terbium is Tb
If you meant "element" as in a chemical element, there is no element with the symbol "ef" in the periodic table.