Microbiology 9th Edition by Laura Black, Jacquelyn Black

تمرين 32

Atoms consist of ________ that are positively charged; neutrons, which carry a ________ charge; and ________, which carry a negative charge. The protons and neutrons together form the atomic ________, while the electrons ________ the nucleus. Atomic weight refers to the number of ________ and ________ found in an element. Atomic ________ refers to the number of protons found in an atom of a given element.