Answer:
6 moles of oxygen, or 3O2.
Explanation:
I would build a proportion for this:

Explanation:
<h2>The number of energy levels (n) increases, so there is a greater distance between the nucleus and the outermost orbital.</h2>
Answer:
the answer is true
Explanation:
it is the smallest particle in an element that takes part in a chemical reaction
It is True because in the periodic table of elements, there are seven horizontal rows of elements called periods. The vertical columns of elements are called groups, or families.
Solar eclipse only i believe