1) Ions are formed when an atom gains or loses ............ a) electrons b) neutrons c) protons 2) Atoms lose or gain electrons to form ions to achieve .......... a) the electronic configuration of a noble gas b) a fully filled electron shell c) a fully filled valence electron shell d) the electronic configuration of a gas 3) Cations are ....(1).... ions formed when atoms ....(2).... a) negative, gain electrons b) negative, lose protons c) positive, lose electrons d) positive, gain protons 4) A copper atom loses ...... electron(s) to form a copper ion with a 2+ charge. a) one b) two c) three 5) Anions are ....(1).... ions formed when atoms ....(2).... a) negative, gain electrons b) negative, lose protons c) positive, lose electrons d) positive, gain protons 6) A nitrogen atom gains ...... electron(s) to form a nitride ion with a 3− charge. a) one b) two c) three 7) The electronic configuration of an oxygen atom is 2, 6. What is the formula and electronic configuration of the oxide ion? a) O6+: 2 b) O2-: 2, 8 c) O5+: 2, 1 d) O-: 2, 7 8) Which element has the same electronic configuration as a chloride ion? [Cl: 2, 8, 7] a) Neon, Ne: 2, 8 b) Argon, Ar: 2, 8, 8 c) Sulfur, S: 2, 8, 6 9) Metallic elements tend to ...(1)... electrons while non-metallic elements (except noble gases) tend to ...(2)... electrons. a) lose, gain b) gain, lose

[D] Ions

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