IF YOU CAN ASWER THESE ILL GIVE YOU A 100 points!
I only have 5 mins

In the 1800s, one of the statements in john dalton's atomic theory was that atoms are indivisible. later experimental evidence led to the discovery of subatomic particles such as neutrons, electrons, and protons. what happened to the indivisible atom part of dalton's atomic theory, and why?

How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer

What happens to isotopes that are unstable?