2006 年

物理 · 共 41 題 · 點擊選項即時核對答案

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41.

$X\xrightarrow{\alpha}Y\xrightarrow{\beta}Z$

$P\xrightarrow{\beta}Q\xrightarrow{\beta}R\xrightarrow{\alpha}S$

In the above two decay series, $P$ and $Y$ are two isotopes of the same element. Which of the following pairs of nuclides may be isotopes ?

(1)

X

and

R

(2)

Y

and

S

(3)

Z

and

Q