题目内容
8.完成下列核反应方程:(1)${\;}_{5}^{10}$B+${\;}_{2}^{4}$He→${\;}_{7}^{13}$+${\;}_{0}^{1}n$;${\;}_{7}^{13}$N→${\;}_{6}^{13}$C+${\;}_{1}^{0}H$;
(2)${\;}_{1}^{2}$H+${\;}_{1}^{3}H$→${\;}_{2}^{4}$He+${\;}_{0}^{1}$n;
(3)${\;}_{13}^{27}$Al+${\;}_{0}^{1}$n→${\;}_{12}^{27}Mg$+${\;}_{1}^{1}$H
(4)${\;}_{7}^{14}$N+${\;}_{0}^{1}$n→${\;}_{6}^{14}$C+${\;}_{1}^{1}H$;
(5)${\;}_{1}^{2}$H+γ→${\;}_{1}^{1}$H+${\;}_{0}^{1}n$;
(6)${\;}_{11}^{23}$Na+${\;}_{1}^{2}H$→${\;}_{11}^{24}$+${\;}_{1}^{1}$H; ${\;}_{11}^{24}$Na→${\;}_{12}^{24}$Mg+${\;}_{-1}^{0}e$.
分析 根据质量数守恒和电荷数守恒完成核反应方程,即可求解.
解答 解:根据质量数守恒和电荷数守恒得:
(1)${\;}_{5}^{10}$B+${\;}_{2}^{4}$He→${\;}_{7}^{13}$+${\;}_{0}^{1}n$,${\;}_{7}^{13}$N→${\;}_{6}^{13}$C+${\;}_{1}^{0}H$;
(2)${\;}_{1}^{2}$H+${\;}_{1}^{3}H$→${\;}_{2}^{4}$He+${\;}_{0}^{1}$n;
(3)${\;}_{13}^{27}$Al+${\;}_{0}^{1}$n→${\;}_{12}^{27}$Mg+${\;}_{1}^{1}$H
(4)${\;}_{7}^{14}$N+${\;}_{0}^{1}$n→${\;}_{6}^{14}$C+${\;}_{1}^{1}H$;
(5)${\;}_{1}^{2}$H+γ→${\;}_{1}^{1}$H+${\;}_{0}^{1}n$;
(6)${\;}_{11}^{23}$Na+${\;}_{1}^{2}H$→${\;}_{11}^{24}$+${\;}_{1}^{1}$H; ${\;}_{11}^{24}$Na→${\;}_{12}^{24}$Mg+${\;}_{-1}^{0}e$
故答案为:(1)${\;}_{0}^{1}n$;${\;}_{1}^{0}H$;(2)${\;}_{1}^{3}H$;(3)${\;}_{12}^{27}Mg$;(4)${\;}_{1}^{1}H$;(5)${\;}_{0}^{1}n$;(6)${\;}_{1}^{2}H$;${\;}_{-1}^{0}e$
点评 本题要注意根据质量数守恒和电荷数守恒书写核能核反应方程.
| A. | 电荷的电势能减少了2×10-6J | B. | 电荷的动能增加了2×10-6J | ||
| C. | 电荷在B处时具有2×10-6J的电势能 | D. | 电荷在B处时具有2×10-6J的动能 |
| A. | 光子 | B. | 电子 | C. | 质子 | D. | 中子 |
| A. | ${\;}_{7}^{14}$N+${\;}_{2}^{4}$He→${\;}_{8}^{17}$O+X | |
| B. | ${\;}_{13}^{27}$Al+${\;}_{0}^{1}$n→${\;}_{12}^{27}$Mg+X | |
| C. | ${\;}_{1}^{2}$H+${\;}_{1}^{3}$H→${\;}_{2}^{4}$He+X | |
| D. | ${\;}_{92}^{235}$U+X→${\;}_{38}^{90}$Sr+${\;}_{54}^{136}$Xe+10${\;}_{0}^{1}$n |
| A. | AO是红光,它穿过玻璃的时间最长 | B. | AO是红光,它穿过玻璃的时间最短 | ||
| C. | AO是紫光,它穿过玻璃的时间最长 | D. | AO是紫光,它穿过玻璃的时间最短 |