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dunaganvocab

Science vocabulary words for EOQ

QuestionAnswer
element a substance that cannot be broken down into a simpler substance by ordinary chemical changes. Consists of atoms of only one type
proton a positively charged particle located in an atom’s nucleus
neutron a neutral particle located in an atom’s nucleus
nucleus the central region of an atom where most of the atom’s mass is found in protons and neutrons
electron a negatively charged particle located outside an atom’s nucleus about 2000 times smaller than either a proton or neutron
atomic number the total number of protons in an atom’s nucleus
atomic mass # the total number of protons and neutrons in an atom’s nucleus