Problem
Create an abstract classnamedElementthat holds properties of elements, including theirsymbol,atomic number, andatomic weight. Include aconstructorthat requires values for all three properties and a get methodfor each value. (For example, the symbol for carbon is C, its atomic number is 6, and its atomic weight is 12.01. You can find these values by reading a periodic table in a chemistry reference or by searching the Web). Also include an abstract method nameddescribeElement().