物理核能 DSE、CE 選擇題

1.

${}^{2}_{1}\mathrm{H}+{}^{3}_{1}\mathrm{H}\to{}^{4}_{2}\mathrm{He}+\mathrm{n}$ Which of the following descriptions about the nuclear reaction above is correct ?

2.

Which of the following conditions is/are necessary to sustain the chain reaction in the nuclear fission of uranium-235 ?

(1)Each fission produces a large amount of energy.

(2)At least one neutron is released in each fission.

(3)Each fission produces two smaller nuclei.

3.

Which of the following nuclear reactions is a fission ?

4.

Which of the following nuclear reactions is a nuclear fusion ?

5.

${}^{2}_{1}\mathrm{H}+{}^{x}_{1}\mathrm{H}\to{}^{4}_{y}Z+\text{a neutron}$ Find the values of $x$ and $y$ in the above nuclear reaction.

	$x$	$y$
	$2$	$1$
	$2$	$2$
	$3$	$1$
	$3$	$2$

6.

In the below nuclear reactions, what do $X$ , $Y$ and $Z$ represent ?

(1)

{}^{210}_{84}\mathrm{Po}\to{}^{206}_{82}\mathrm{Pb}+X

(2)

{}^{2}_{1}\mathrm{H}+{}^{3}_{1}\mathrm{H}\to{}^{4}_{2}\mathrm{He}+Y

(3)

{}^{234}_{90}\mathrm{Th}\to{}^{234}_{91}\mathrm{Pa}+Z

$X$	$Y$	$Z$
an $\alpha$ particle	a proton	a $\beta$ particle
an $\alpha$ particle	a neutron	a $\beta$ particle
an $\alpha$ particle	a neutron	$\gamma$ rays
a $\beta$ particle	a neutron	$\gamma$ rays

7.

${}^{27}_{13}\mathrm{Al}+{}^{4}_{2}\mathrm{He}\to{}^{30}_{15}\mathrm{P}+X$ In the above nuclear reaction, what are the atomic number and mass number of $X$ ?

	Atomic number	Mass number
	$-1$	$0$
	$-1$	$1$
	$0$	$1$
	$1$	$0$

8.

Which of the following equations represent(s) possible nuclear reaction(s) ?

(1)

{}^{27}_{13}\mathrm{Al}+{}^{4}_{2}\mathrm{He}\to{}^{30}_{15}\mathrm{P}+\text{proton}

(2)

{}^{2}_{1}\mathrm{H}+{}^{3}_{1}\mathrm{H}\to{}^{4}_{2}\mathrm{He}+\text{neutron}

(3)

{}^{234}_{90}\mathrm{Th}\to{}^{234}_{91}\mathrm{Pa}+\beta\text{ particle}

9.

Which of the following equations represent(s) possible nuclear reactions ?

(1)

{}^{10}_{5}\mathrm{B}+\text{neutron}\to{}^{6}_{3}\mathrm{Li}+\alpha\text{ particle}

(2)

{}^{210}_{83}\mathrm{Bi}\to{}^{210}_{84}\mathrm{Po}+\beta\text{ particle}

(3)

{}^{14}_{7}\mathrm{N}+\alpha\text{ particle}\to{}^{17}_{8}\mathrm{O}+\text{proton}

10.

In the following nuclear reaction : ${}^{27}_{13}\mathrm{Al}+{}^{4}_{2}\mathrm{He}\to{}^{30}_{15}\mathrm{P}+X$ what is the mass number and atomic number of $X$ ?

	Mass number	Atomic number
	$1$	$0$
	$0$	$-1$
	$4$	$2$
	$0$	$0$