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In each of the following sets of elements, which one will be least likely to gain or lose electrons?
1. Cesium (Cs), Rubidium (Rb), and Sodium (Na)
2. Barium (Ba), Calcium (Ca), and Beryllium (Be)
3. Fluorine (F), Chlorine (Cl), and Bromine (Br)
4. Tellurium (Te), Oxygen (O), and Sulfur (S)
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In each of the following sets of elements, which one will be least likely to gain or lose electrons?...
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