Different <u>ions</u> of an element have different numbers of electrons.
I think it is ions.
It is c sike I lied u thought I lied respectfully
This probably isn’t the answer you are looking for, but your homework question is heavily outdated. New studies show that ADHD is not caused by a chemical imbalance but rather issues with dopamine transporters () which is a protein in the body. However, the answer I believe to be most fitting for your homework would be a serotonin deficiency.
Answer:
D. 5,700 m/s
Explanation:
Sorry for the late reply! I recently just answered this earlier.