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    				| 1. | The calculated mass of ` ""_(20)Ca^(40)` is 40.328 u. It releases 306.3 MeV energy in a nuclear process . Its isotopic mass isA. 39.998B. 40.657C. 0.329D. `2.85xx10^(4)` | 
| Answer» Correct Answer - A `BE= Deltam xx 931 MeV ` ` 306.3 = Delta m xx 931` `Delta=0.3290` `Deltam`=calcualted mass - isotopic mass - Isotopic mass =` Delta m`- calculated mass =0.3290-40.328 =- 39.998 `:.` Isotopic mass = 39.998 | |