MCQOPTIONS
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				| 1. | 
                                    The ratio of mass of a neutron to that of an electron is about 1839. What is the ratio of the mass of a proton to that of an electron? | 
                            
| A. | 159 | 
| B. | 1837 | 
| C. | 2537 | 
| D. | 10000 | 
| Answer» C. 2537 | |