It s very important to identify your area of interest and level of commitment to the nursing field and then formulate a plan that will help you meet the nursing requirements to get you to the career level you desire.
Oxygen would be (O2). The 2 is a subscript. Sub means below. The 2 is written to the right of and below the O. A pair of oxygen atoms is a molecule of oxygen. A molecule is the smallest particle of a substance that exists independently. Molecules of most elements are made up of only one of atom of that element. Oxygen, along with nitrogen, hydrogen, and chlorine are made up of two atoms. Look at the model of oxygen above.
Relevance. Rating Newest Oldest. Best Answer: An oxygen ATOM is the smallest individual part of the element oxygen-O. An oxygen MOLECULE is the smallest part of the element oxygen that can exist in a free state-in this case a pair of atoms or O2.Source(s):n atom is the smallest part of an element which still possesses the element's chemical (or is it physical? forgot) properties (this case= O). A molecule, the smallest part that can exist in free state (in this case a pair of atoms= O2).