Relacionar Columnas Atoms and APEMANVersión en línea Parts of the atom and APEMAN matching (8.5A) por James Dycus 1 2 M 3 4 A (M-A) 5 6 7 8 9 E 10 11 A 12 P 13 N Atomic Number Circular areas that make up the electron cloud. These shells are the path that electrons take as they constantly move around the nucleus. (Energy Shells/Electron Shells) Atomic Mass Subatomic particle that has a negative (-1) charge and has zero atomic mass units (0 amu) (Electron) Electrons located in the outermost electron shell. This is the shell responsible for chemical reactivity. (Valence Electron) Number of Protons Subatomic particle with a neutral (0) charge and a mass of 1 atomic mass unit (1 amu) (Neutron) Area located outside of the dense compact core. This area is mostly empty space and is where all the electrons are located. (Electron Cloud) Atomic Number (M-A) Number of Electrons The dense and compact core of the atom that contains all of the protons and neutrons. (Nucleus) Subatomic particle with a positive (+1) charge and a mass of 1 atomic mass unit (1 amu) (Proton) Number of Neutrons
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