Multiple Choice Questions 1. An atom that has gained electrons is a A. Reactant B. Negative ion C. Positive ion D. Compound ion 2. An atom with twelve electrons, twelve protons, and fourteen neutrons has a mass number of A. Fourteen B. Twenty-four C. Thirty-eight D. Twenty-six 3. A hydroxide ion has an oxygen atom A. Only B. And an extra electron C. And a hydrogen atom, and an extra electron D. And a hydrogen atom, and an extra proton 4. A negative charge is characteristic of a(n) A. Positive ion B. Electron C. Neutron D. Proton

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