MCQOPTIONS
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| 1. |
The alpha particle carries two positive charges. Its mass is very nearly equal to that of |
| A. | Two protons |
| B. | An atom helium |
| C. | Sum of masses of two positrons and two neutrons |
| D. | Two positron as each positron carries a single positive charge |
| Answer» C. Sum of masses of two positrons and two neutrons | |