22.13: Meias-vidas de vários isótopos radioativos

Meias-vidas para vários isótopos radioativos

Isótopo	Half-Life ^1	Tipo de emissão ^2	Isótopo	Half-Life ^3	Tipo de emissão ^4
${}_6^{14}\text{C}$	5730 g	$\left({\beta }^{\text{−}}\right)$	${}_{83}^{210}\text{Bi}$	5,01 d	$\left({\beta }^{\text{−}}\right)$
${}_7^{13}\text{N}$	9,97 km	$\left({\beta }^{\text{+}}\right)$	${}_{83}^{212}\text{Bi}$	60,55 mm	$(\alpha \text{ou}{\beta }^{\text{−}})$
${}_9^{15}\text{F}$	4.1$\times$10 ^−22 s	$\left(p\right)$	${}_{84}^{210}\text{Po}$	138,4 d	$(\alpha )$
${}_{11}^{24}\text{Na}$	15,00 h	$\left({\beta }^{\text{−}}\right)$	${}_{84}^{212}\text{Po}$	3$\times$10 ^−7 s	$(\alpha )$
${}_{15}^{32}\text{P}$	14,29 d	$\left({\beta }^{\text{−}}\right)$	${}_{84}^{216}\text{Po}$	0,15 s	$(\alpha )$
${}_{19}^{40}\text{K}$	1,27$\times$10 ^x 90 g	$\left(\beta \text{ou}E.C.\right)$	${}_{84}^{218}\text{Po}$	3,05 mm	$(\alpha )$
${}_{26}^{49}\text{Fe}$	0,08 s	$\left({\beta }^{\text{+}}\right)$	${}_{85}^{215}\text{Em}$	1,0$\times$10 ^−4 s	$(\alpha )$
${}_{26}^{60}\text{Fe}$	2.6$\times$10 ^x 6 g	$\left({\beta }^{\text{−}}\right)$	${}_{85}^{218}\text{Em}$	1,6 s	$(\alpha )$
${}_{27}^{60}\text{Co}$	5,27 g	$\left({\beta }^{\text{−}}\right)$	${}_{86}^{220}\text{Corra}$	55,6 s	$(\alpha )$
${}_{37}^{87}\text{Rb}$	4.7$\times$10 ^x 10 g	$\left({\beta }^{\text{−}}\right)$	${}_{86}^{222}\text{Corra}$	3,82 d	$(\alpha )$
${}_{38}^{90}\text{Sr}$	29 anos	$\left({\beta }^{\text{−}}\right)$	${}_{88}^{224}\text{Ra}$	3,66 d	$(\alpha )$
${}_{49}^{115}\text{Em}$	5.1$\times$10 ^x 15 g	$\left({\beta }^{\text{−}}\right)$	${}_{88}^{226}\text{Ra}$	1600 g	$(\alpha )$
${}_{53}^{131}\text{EU}$	8.040 d	$\left({\beta }^{\text{−}}\right)$	${}_{88}^{228}\text{Ra}$	5,75 g	$\left({\beta }^{\text{−}}\right)$
${}_{58}^{142}\text{Ce}$	5$\times$10 ^x 15 g	$(\alpha )$	${}_{89}^{228}\text{Ac}$	6,13 h	$\left({\beta }^{\text{−}}\right)$
${}_{81}^{208}\text{Tl}$	3,07 m	$\left({\beta }^{\text{−}}\right)$	${}_{90}^{228}\text{O}$	1,913 g	$(\alpha )$
${}_{82}^{210}\text{Pb}$	22,3 g	$\left({\beta }^{\text{−}}\right)$	${}_{90}^{232}\text{O}$	1.4$\times$10 ^x 10 g	$(\alpha )$
${}_{82}^{212}\text{Pb}$	10,6 h	$\left({\beta }^{\text{−}}\right)$	${}_{90}^{233}\text{O}$	22 mm	$\left({\beta }^{\text{−}}\right)$
${}_{82}^{214}\text{Pb}$	26,8 km	$\left({\beta }^{\text{−}}\right)$	${}_{90}^{234}\text{O}$	$\text{24,10 d}$	$\left({\beta }^{\text{−}}\right)$
${}_{83}^{206}\text{Bi}$	6,243 d	$\left(E.C.\right)$	${}_{91}^{233}\text{Pa}$	27 d	$\left({\beta }^{\text{−}}\right)$
${}_{92}^{233}\text{U}$	1,59$\times$10 ^- 5 g	$(\alpha )$	${}_{96}^{242}\text{Cm}$	162,8 d	$(\alpha )$
${}_{92}^{234}\text{U}$	2,45$\times$10 ^- 5 g	$(\alpha )$	${}_{97}^{243}\text{Bk}$	4,5 h	$(\alpha \text{ou}E.C.)$
${}_{92}^{235}\text{U}$	7.03$\times$10 - ^8 g	$(\alpha )$	${}_{99}^{253}\text{Es}$	20,47 d	$(\alpha )$
${}_{92}^{238}\text{U}$	4,47$\times$10 ^x 90 g	$(\alpha )$	${}_{100}^{254}\text{Fm}$	3,24 h	$(\alpha \text{ou}S.F.)$
${}_{92}^{239}\text{U}$	23,54 quilômetros	$\left({\beta }^{\text{−}}\right)$	${}_{100}^{255}\text{Fm}$	20,1 h	$(\alpha )$
${}_{93}^{239}\text{Não}$	2,3 d	$\left({\beta }^{\text{−}}\right)$	${}_{101}^{256}\text{Md}$	76 mm	$(\alpha \text{ou}E.C.)$
${}_{94}^{239}\text{Pu}$	2.407$\times$10 ^x 40 g	$(\alpha )$	${}_{102}^{254}\text{Não}$	55 s	$(\alpha )$
${}_{94}^{239}\text{Pu}$	6.54$\times$10 ^x 3 g	$(\alpha )$	${}_{103}^{257}\text{Lr}$	0,65 s	$(\alpha )$
${}_{94}^{241}\text{Pu}$	14,4 g	$(\alpha \text{ou}{\beta }^{\text{−}})$	${}_{105}^{260}\text{Ha}$	1,5 s	$(\alpha \text{ou}S.F.)$
${}_{95}^{241}\text{Sou}$	432,2 g	$(\alpha )$	${}_{106}^{263}\text{Sg}$	0,8 s	$(\alpha \text{ou}S.F.)$

Tabela M1

Notas de pé

• 1 y = anos, d = dias, h = horas, m = minutos, s = segundos
• 2 E.C. = captura de elétrons, S.F. = Fissão espontânea
• 3 y = anos, d = dias, h = horas, m = minutos, s = segundos
• 4 E.C. = captura de elétrons, S.F. = fissão espontânea