Yes. The atomic number is how they are ordered.
An ordered array is simply an array where all elements are in sorted order: int a[] = {3, 6, 9, 10, 15, 21}; // ordered array An array can either be initialised with ordered elements or the elements may be sorted after initialisation. When inserting new elements into an ordered array, the order must be maintained.
The elements are ordered by their mass number.
Elements are ordered by atomic number.
Since relation is a set, and tuples are element of a set, according to set theory, the elements of a set are not ordered.
ya
Number of protons.
Mendeleev arranged the elements in a table with the rows ordered by atomic mass and the columns ordered the elements properties.
They are the elements from the first set in the original Carestian product. For example, if you make ordered pairs on an x-y plane, then they are the elements of the set X.
Yes.
It is called an ordered pair.
They are elements of the infinite set of ordered pairs of the form (x, 0.1x+1). It is an infinite set and I am not stupid enough to try to list its elements!