%%

Gaokao Physics Practice Question

查德威克用 $\alpha$ 粒子轰击铍核, 核反应方程式是 ${ }_{2}^{4} \mathrm{He}+{ }_{4}^{9} \mathrm{Be} \rightarrow X+{ }_{6}^{12} \mathrm{C}$, 其中 $\mathrm{X}$ 是

  1. A.质子
  2. B.中子
  3. C.电子
  4. D.正电子

Want to know if you got it right?

Answer this and thousands more real Gaokao previous-year questions free, get graded instantly, and climb the global ranked leaderboard.

Practice Gaokao free →

More Gaokao Physics questions