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CBB 3.1

Chemical Building Blocks- Ch.3 Sec. 1

QuestionAnswer
nucleus the central cor of an atom containing protons and usually neutrons
proton a small, positively charged particle in the nucleus of the atom
neutron a small particle in the nucleus of the atom with no electrical charge
electron a tiny, negatively charged particle that moves around the nucleus of an atom
atomic number the number of protons in the nucleus of an atom
isotope an atom with the same number of protons and a different number of neutrons from the other atoms of the same element
mass number the sum of the protons and neutrons in the nucleus of an atom
model in science, a diagram, a mental picture, a mathematical statement, or an object that helps explain ideas about the natural world
Created by: Olivia E.
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