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Gaokao Physics Practice Question

1. （6 分) 原子核 $\mathrm{z}^{\mathrm{A}} \mathrm{X}$ 与㲴核 ${ }_{1}{ }^{2} \mathrm{H}$ 反应生成一个 $\alpha$ 粒子和一个质子. 由此可知（

  1. A.$A=2, Z=1$
  2. B.$\mathrm{A}=2, \mathrm{Z}=2$
  3. C.$\mathrm{A}=3, \mathrm{Z}=3$
  4. D.$\mathrm{A}=3, \mathrm{Z}=2$

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