What does the atomic number of an element tell you?

1 Answer
Feb 20, 2017

Answer:

Identifies the number of protons a single atom of the element contains.

Explanation:

The atomic number helps people identify elements according to the number of protons one atom of the element has. It essentially defines the element.

While having a neutral charge, it also provides the number of electrons the element has (in one atom).

While isotopes are a thing, it doesn't completely change the atom.

Have a different number of neutrons, you have an isotope, but if the number of protons differ, you are dealing with an entirely different element (in neutral state - reactions are out of the picture).

Hope this helps :)