A. \(\varepsilon =\frac{\left( {{m}_{p}}+{{m}_{n}}-{{m}_{X}} \right){{c}^{2}}}{A}\).
B. \(\varepsilon =\frac{\left( Z{{m}_{p}}+\left( A-Z \right){{m}_{n}}-{{m}_{X}} \right){{c}^{2}}}{A}\).
C. \(\varepsilon =\frac{\left( Z{{m}_{p}}+\left( A-Z \right){{m}_{n}}-{{m}_{X}} \right){{c}^{2}}}{Z}\).
D. \(\varepsilon =\frac{\left( Z{{m}_{p}}+\left( A-Z \right){{m}_{n}}-{{m}_{X}} \right){{c}^{2}}}{A-Z}\).
B
Ta có:
\(\varepsilon =\frac{\left( Z{{m}_{p}}+\left( A-Z \right){{m}_{n}}-{{m}_{X}} \right){{c}^{2}}}{A}\).
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