What do protons determine about an element?

1 Answer

Answer:

The identity of the element.

Explanation:

The number of protons, the number of positively charged, massive nuclear particles, gives #Z#, the atomic number. #Z# determines the identity of the element: #Z=1# , hydrogen; #Z=2# , helium; #Z=3# , lithium;........... #Z=26#, iron;.......... #Z=92# , uranium.

You don't have to remember these numbers, because for every exam in chemistry and physics you ever sit, you should be issued with a copy of the Periodic Table as a matter of course. Nevertheless, you still have to be able to use this Table.