1) An atom has... a) an equal number of protons and neutrons b) an equal number of protons and electrons c) an equal number of neutrons and electrons 2) An ion is... a) an atom or group of atoms with a positive or negative charge. b) an atom or group of atoms with a neutral charge 3) Ions form when... a) atoms lose electrons to obtain a full outer shell: b) atoms gain electrons to obtain a full outer shell: c) atoms lose neutrons to obtain a full outer shell: d) atoms gain neutrons to obtain a full outer shell: 4) metal atoms a) lose electrons to form positively charged ions b) gain electrons to form positively charged ions c) lose protons to form positively charged ions d) gain protons to form positively charged ions 5) non-metal atoms a) gain neutrons to form negatively charged ions b) lose electrons to form negatively charged ions c) gain electrons to form negatively charged ions d) gain protons to form negatively charged ions 6) Metal atoms lose electrons so the ions are... a) negative, because they have more protons than electrons b) positive, because they have more protons than electrons 7) Non-metal atoms gain electrons so the ions are... a) negative, because they have more electrons than protons b) positive, because they have more electrons than protons 8) Cations are a) positively charged b) negatively charged 9) Anions are a) positively charged b) negatively charged 10) Oxygen atoms make a) oxide ions b) nitride ions c) sulfide ions d) phosphide ions 11) Nitrogen atoms make a) oxide ions b) nitride ions c) sulfide ions d) phosphide ions 12) Phosphorus atoms make a) oxide ions b) nitride ions c) sulfide ions d) phosphide ions 13) Sulfur atoms make a) oxide ions b) nitride ions c) sulfide ions d) phosphide ions

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