Question

1. what part of the element does the \8\ refer to in the diagram? oxygen 15.999 atomic mass atomic number atomic symbol states of matter clear all

Explanation:

In the periodic - table representation of an element, the number at the top left of the element box is the atomic number. For oxygen, the atomic number is 8, which represents the number of protons in the nucleus of an oxygen atom.

Answer:

Atomic Number