Answer:
1) An object that belongs to a set --- Element
2) A set without elements ---- Empty set
3) A collection or group of objects ----- Set
4) Any set whose elements cannot be counted ---- Infinite set.
5) Any set whose elements can be counted ----- Finite set.
Explanation:
Set--
A set is a collection of well defined objects.
- The objects of the set are also known as elements of a set.
- A set S is defined as follows:
S= {a,b,c,d}
where a,b,c and d are elements of the set.
- Also, a set with finite number of elements i.e. whose elements could be counted is known as a finite set else it is infinite set.
- Also, a set with zero elements is known as a empty or a null set.
and is given by: {} or φ