Respuesta :
Answer:
number of protons
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).
hope you understand please give brainliest
Answer:
→ number of protons.
Explanation:
let's take an example of hydrogen:
[tex] \dashrightarrow \: { \boxed{ \tt{ {}^{1} _{1} H}}}[/tex]
hydrogen has atomic number 1, because it has only one proton
