JAVA

Part 1: Develop an abstract class Periodic.java to hold information about elements of the periodic table. The class should have the variables: symbol, atomicNumber, and atomicWeight. The class should have a default constructor and a constructor that accepts arguments for all three variables. In addition the class should have the appropriate getters, setters, toString, and equals methods and an abstract method describeElement.

Part 2: Develop two classes (PeriodicMetal.java and PeriodicNonMetal.java) which extend Periodic.java and include the method describeElement (the method should print a brief explanation of the element i.e. metals are good conductors, non-metals are not good conductors).

Part 3: Develop a class PeriodArray.java which creates array which holds at least 3 instances of each type and iterates over the array calling the toString and describeElement methods of each instance.

Submit all 4 files.