If this is an English Question list the terms so we can pick from those. Otherwise we dont have the correct terms to answer the question
Answer:
Explanation:
There are isotopes, which are the same atom, but different number of neutrons, so only neutrons cannot determine the atom
Carbon dioxide is a compound (CO2). The other are just considered molecules since they are bonded to themselves. Lithium (Li) is an element since it's on its own and hasn't formed a bond yet.
Kind of. A barometer measures air pressure. Not actual weather. Even though air pressure has a lot to do with the weather it is not exactly the same thing.
