The mass of a single potassium atom is 6.50×10-23 grams. How many potassium atoms would there be in 329 milligrams of potassium?

D.na is the answer hope this

Ido not understand. 

The atomic nucleus made up from protons (yellow) and neutrons (blue) and held together by nuclear forces. nuclear forces (also known as nuclear interactions or strong forces) are the forces that act between two or more nucleons. they bind protons and neutrons (“nucleons”) into atomic

"electrical energy" transforms to "thermal energy".hope my answer has you : )