24. What is the term for electrons that are not held within a bond?

How many moles of al3+ ions are in 1.25 moles of al2o3

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

The atomic number, or number, is the described as the number of in the nucleus of an chemical element.