1. There are how many mol of oxygen in 3.5 mol of caffeine.

For ai it's atomic number is 13 and it's mass number is 27 how many neutrons does it have

Adeuteron, 21h, is the nucleus of a hydrogen isotope and consists of one proton and one neutron. the plasma of deuterons in a nuclear fusion reactor must be heated to about 3.02×108 k . what is the rms speed of the deuterons? express your answer using two significant figures.

What is the atomic number of an atom that has 6 protons