Flashcards › Science Vocabulary 14

Atom smallest part of an element that can be identified as that element Electron negatively charged particle Neutron neutral particle Nucleus center, or core, of an atom Proton positively charged particle Atomic Number number of protons in the nucleus of an atom Atomic Mass total mass of the protons and neutrons in an atom, measure in atomic mass units (amu) Mass Number number of protons and neutrons in the nucleus of an atom Isotope atom of an element with the same number of protons but a different number of neutrons Energy Level place in an atom where an electron is most likely to be found Chapter 14