Correct: protons are positive, neutrons have no charge, electrons are negative, ions are atoms with same # of protons, different # of electrons, isotopes are atoms with same # of protons, different # of neutrons, the nucleus is made up of protons and neutrons, more electrons in an ion is known as a anion, If you change the # of protons, you have a new element, Electrons are found in electron shells, Incorrect: protons are negative, protons have no charge, ions and isotopes are the same, ions have different # of protons, electrons are positive, the nucleus is made up of protons and electrons, more electrons in an ion is known as a cation, atoms are big,

Atom, Ions, and Isotopes Review

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