Number of protons Number of neutrons
Number of electrons
126
6a
6
6
39 Ar
1H
75As3-
39K1+
63 Cu2+

- "the choice that is not an indicator of a chemical change is "state of matter changes". more common than not, chemical reactions produce energy in the form of light or heat. along with energy, they also produce a new substance called the product that could be in any state of matter (solid, gas, or liquid)."

56 moles of   lieter in chemistry

i think tornado but not 100%