It is important to know the difference between atoms, ions. and isotopes. Choose all of the correct answers. An atom of oxygen and the ion of oxygen both have 8 protons.
Electrons must be removed from a carbon atom to form an isotope.
The atomic mass of metals is calculated differently that the atomic mass of nonmetals.
As you add or remove neutrons from the nucleus, isotopes are formed.
The most massive subatomic particles are electrons.
The isotope of carbon and the atom of nitrogen both have / protons in the nucleus.
Atomic

One way in which the useful metal copper is produced is by dissolving the mineral azurite, which contains copper(ii) carbonate, in concentrated sulfuric acid. the sulfuric acid reacts with the copper(ii) carbonate to produce a blue solution of copper(ii) sulfate. scrap iron is then added to this solution, and pure copper metal precipitates out because of the following chemical reaction: (s) (aq) (s) (aq) suppose an industrial quality-control chemist analyzes a sample from a copper processing plant in the following way. he adds powdered iron to a copper(ii) sulfate sample from the plant until no more copper will precipitate. he then washes, dries, and weighs the precipitate, and finds that it has a mass of .