Which substance is a combination of different atoms?

homogeneous mixture
heterogeneous mixture
element
compound

14 days is the half-life of phosphorus-32

no statements shown

the atomic number of carbon is six, which means that a carbon atom has six protons. carbon has three naturally occurring isotopes: carbon-12, carbon-13, and carbon-14. which of these statements are true about carbon and its isotopes? select all that appl