Two different atoms have nine protons each and the same mass. However, one is neutral while the other has a negitive charge. Describe what each atomic structure could be, listing the possible number and location of all subatomic particles.

Problem page a jet airplane reaches 846. km/h on a certain flight. what distance does it cover in 13.0 min? set the math up. but don't do any of it. just leave your answer as a math expression. also, be sure your answer includes all the correct unit symbols.