MCQOPTIONS
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MCQOPTIONS
| 1. |
On what do the chemical properties of an element depend? |
| A. | number of electrons in the outermost shell of the element |
| B. | number of isotopes of the element |
| C. | mass number of the element |
| D. | total number of neutrons in the element |
| Answer» B. number of isotopes of the element | |