Which of the following elements has its symbol given in the correct manner?
Aluminium - Al
Zinc - ZN
Fluorine - f
Boron - b
Symbols of elements are written as per the IUPAC guidelines. The first letter of a symbol is written as a capital letter (upper case) and the second letter as a small letter (lower case).
Example: Argon - Ar, Barium - Ba, Chlorine - Cl