MCQOPTIONS
Saved Bookmarks
| 1. |
When alpha rays are sent through a thin metal foil, most of them go straight through the foil because |
| A. | alpha rays are much heavier than electron rays |
| B. | alpha rays are positively charged |
| C. | alpha rays move with high velocity |
| D. | most part of the atom is empty |
| Answer» D. most part of the atom is empty | |