List down two applications of isotopes

✅1) Isotopes of iodine are used for radiotherapy in treatment of hyperthyroidism, cancer, etc.

✅2) Uranium, Radium, Polonium isotopes are used in atomic reactors.

IamSugarBee

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

did anyone actually do this? like if anyone has submitted this i rly need .