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science vocab 4

proton a positively charged subatomic particle that is found in the nucleus of an atom
electron a negatively charged subatomic particle that is found in the space outside the nucleus of an atom
neutron a neutral subatomic particle that is found in the nucleus of an atom
atomic number a unique number for each element that equals the number of protons in an atom of that element
mass number the sum of the number of protons and neutrons in the nucleus of an atom
isotopes atoms of a given element that have different numbers of neutrons and different mass numbers
energy levels the possible energies that electrons in an atom can have
electron cloud a visual model of the most likely
orbital a region of space around around the nucleus where an electron is likely to be found
electron configuration the arrangement of electrons in the orbitals of an atom
ground state a state in which all the electrons in an atom have the lowest possible energies
nucleus the dense, positively charged mass located in the center of an atom
Created by: HaileyAbrams