There are approx #~=2.2xx10^22# individual potassium atoms.
Explanation:
In #"1 mole"# there are #6.022xx10^23# particles.
Thus in #0.0362*mol# potassium metal, there are #0.0362*molxx6.022xx10^23*mol^-1# individual potassium atoms #~=2.2xx10^22# such atoms. What is the mass of this quantity?