Are you weightless when you go upwards in an elevator. explain using newtons 3rd law of motion

yes

Explanation:

inside the free falling elevator you and the scale are both in free fall. because the only force acting on you is gravity, the scale is no longer pushing up on you. according to Newton's 3rd law you no longer push down on the scale so the scale pointer stays at zero making you seem weightless .

atomic number of carbon is 6

electronic configuration of carbon is 1s²2s²2p²

orbital diagram of carbon is as shown here in the image.

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