Q:

Elementary Events vs Elements in the Sample Space

I keep seeing questions in my assignments like

What is the sample-space for this set, and what are it's elementary events?

For the past couple of assignments, I assumed they were the same thing. It seems like this type of question pops up quite often and I'd like to know the difference between them. 
If I were to take a guess at the difference it would be:
Elementary Events: Unique events in the sample space.
Sample Space: The set of events that are possible.
These are the definitions that I keep seeing for both of these, but to me, the definitions are basically the same.

A:

I keep seeing questions in my assignments like

What is the sample-space for this set, and what are it's elementary events?

For the past couple of assignments, I assumed they were the same thing. It seems like this type of question pops up quite often and I'd like to know the difference between them.

They are mostly the same thing in concept; though technically different.
An event is a set of outcomes.   An atom, or atomic set, is a set of one element.   An atomic event and an outcome are different things; although often loosely referred to as though they were the same thing.
The sample space is the set of all outcomes.   Its elementary events are the collection of atomic subsets that partition the space.
$\{1,2,3,4,5,6\}$ is the sample space for the result of one die roll.
$\{1\},\{2\},\{3\},\{4\},\{5\},\{6\}$ are the elementary events of this space.

