A.卢瑟福通过实验发现质子的核反应方程为\(\rlap{_{2}}{^{4}}\)\(He+\)\({}^{14}_{7}\)\(N→\)\(\rlap{_{8}}{^{17}}\)\(O+\)\(\rlap{_{1}}{^{1}}\)\(H\) |
B.铀核裂变的核反应方程为\(\rlap{_{92}}{^{235}}\)\(U→\)\(\rlap{_{56}}{^{141}}\)\(Ba+\)\(\rlap{_{36}}{^{92}}\)\(Kr+2\)\(\rlap{_{0}}{^{1}}\)\(n\) |
C.设质子、中子、\(α\)粒子的质量分别为\(m_{1}\)、\(m\)\({\,\!}_{2}\)、\(m\)\({\,\!}_{3}\),两个质子和两个中子聚合成一个\(α\)粒子,释放的能量是\((m\)\({\,\!}_{1}\)\(+m\)\({\,\!}_{2}\)\(-m\)\({\,\!}_{3}\)\()c\)\({\,\!}^{2}\) |
D.原子在\(a\)、\(b\)两个能级的能量分别为\(E_{a}\)、\(E\)\({\,\!}_{b}\),且\(E\)\({\,\!}_{a}\)\( > E\)\({\,\!}_{b}\),当原子从\(a\)能级跃迁到\(b\)能级时,发射光子的波长\(λ=\)\( \dfrac{hc}{E_{a}-E_{b}}\)\((\)其中\(c\)为真空中的光速,\(h\)为普朗克常量\()\) |