MCQOPTIONS
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| 1. |
Among the alkali metals cesium is the most reactive because____- |
| A. | its incomplete shell is nearest to the nucleus |
| B. | it has a single electron in the valence shell |
| C. | it is the heaviest alkali metal |
| D. | the outermost electron is more loosely bound than the outermost electron of the other alkali metals |
| Answer» E. | |