8. if an atom has 35 protons in the nucleus, how many electrons will it have orbiting the nucleus?

the old alchemists made significant contributions to science even though there starting premises were off a bit. their conclusions after failure would steer them into better directions for investigation. science is no more than close observation and the initial mistakes result in rethinking and retrying experiments.

c. heat could easily travel through the molecules in the air and escape/enter the flask. removing the air slows down the heat transfer.