Question

Atoms of two different elements must have different

electrical charges.
numbers of neutrons.
atomic numbers.
energy levels.
GIVE EXPLANATION!!!!

Answer 1

atomic numbers

Step-by-step explanation:

In order for two atoms to be different, they have to have a different number of protons. Protons are represented by the atomic number. Thus, atoms of two DIFFERENT elements must have different atomic numbers.

I took the test and got 100%

Hope this helps!

Answer 2

c atomic numbers

Step-by-step explanation:

hope this helps