Yes. That is the element's chemical symbol.
number
A quick look at my Periodic Table shows that elements 1 through 111 have either 1 or 2 letters, but elements 112-118 have 3 letter chemical symbols.
Every element has a one or two (or three, if the element doesn't have an official name yet) letter symbol.
If we only used one letter for each element, there could only be 26 elements.
One or two letters are used to represent the name of each element.
no. There is one element for each kind of atom.
Both, it depends on the element. Some have two and some have one
yes so does this mean that an element is abbreviated by a one- or two letter formula?
Each element is represented by a one or two-letter symbol.
Each element is represented by a one or two-letter symbol.
A quick look at my Periodic Table shows that elements 1 through 111 have either 1 or 2 letters, but elements 112-118 have 3 letter chemical symbols.
Every element has a one or two (or three, if the element doesn't have an official name yet) letter symbol.
A chemical symbol is simply an abbreviated way of writing a particular chemical. The symbol is a much more convenient way of identifying each element. Some examples are "O" for oxygen and "H" for hydrogen.
If we only used one letter for each element, there could only be 26 elements.
No, abbreviated letters should be capitalised. Two examples are: the USA not Usa; the UK not Uk. At one time, each letter would have a full stop in between: U.S.A. or U.K. but the full stops are often omitted nowadays.
each element has one atom of the element's name
The letters are a one- or two-letter symbol assigned to each element
Is it true that in a relation for each element of the domain there is only one corresponding element in the range