What happens to the size of a metal element as it becomes a cation? a. it increases b. it decreases c. it remains the same d. it is impossible to tell unless you know the specific element

Which of the following describes a compound? (hint: carbon and oxygen bo a. a piece of pure carbon, containing only carbon atoms b. oxygen gas surrounding a solid piece of carbon c. a substance made of two oxygen atoms for each carbon atom carbon and oxygen atoms mixed without being bonded together