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Isotopes of Cerium (Z=58)
Click on an isotope to get more information about its decay
Isotope	Half-life	Spin Parity	Decay Mode(s) or Abundance
¹¹⁹Ce
¹²⁰Ce		0+
¹²¹Ce
¹²²Ce
¹²³Ce	3.2 s	(5/2)	%EC+%B+=100, %ECP=?
¹²⁴Ce	6 s	0+	%EC+%B+=100
¹²⁵Ce	9.0 s	(5/2+)	%EC+%B+=100, %ECP=?
¹²⁶Ce	50 s	0+	%EC+%B+=100
¹²⁷Ce	31 s	(5/2+)	%EC+%B+=100
¹²⁸Ce	4.1 s	0+	%EC+%B+=100
¹²⁹Ce	3.5 m	5/2+	%EC+%B+=100
¹³⁰Ce	25 m	0+	%EC+%B+=100
¹³¹Ce	10.2 m	(7/2+)	%EC+%B+=100
^131m1Ce	5.0 m	(1/2+)	%EC+%B+=100
¹³²Ce	3.51 h	0+	%EC+%B+=100
^132m1Ce	13 ms	(8-,9-)	%IT=100
¹³³Ce	97 m	1/2+	%EC+%B+=100
^133m1Ce	4.9 h	9/2-	%EC+%B+=100
¹³⁴Ce	3.16 d	0+	%EC=100
¹³⁵Ce	17.7 h	1/2(+)	%EC+%B+=100
^135m1Ce	20 s	11/2(-)	%IT=100
¹³⁶Ce	stable	0+	%Abundance=0.19 1
¹³⁷Ce	9.0 h	3/2+	%EC+%B+=100
^137m1Ce	34.4 h	11/2-	%IT=99.22 3, %EC+%B+=0.78 3
¹³⁸Ce	stable	0+	%Abundance=0.25 1
^138m1Ce	8.65 ms	7-	%IT=100
¹³⁹Ce	137.640 d	3/2+	%EC=100
^139m1Ce	54.8 s	11/2-	%IT=100
¹⁴⁰Ce	stable	0+	%Abundance=88.48 10
¹⁴¹Ce	32.501 d	7/2-	%B-=100
¹⁴²Ce	5e+16 y	0+	%Abundance=11.08 10
¹⁴³Ce	33.039 h	3/2-	%B-=100
¹⁴⁴Ce	284.893 d	0+	%B-=100
¹⁴⁵Ce	3.01 m	(3/2)-	%B-=100
¹⁴⁶Ce	13.52 m	0+	%B-=100
¹⁴⁷Ce	56.4 s	(5/2-)	%B-=100
¹⁴⁸Ce	56 s	0+	%B-=100
¹⁴⁹Ce	5.3 s	(3/2-)	%B-=100
¹⁵⁰Ce	4.0 s	0+	%B-=100
¹⁵¹Ce	1.02 s		%B-=100
¹⁵²Ce	1.4 s	0+	%B-=100
¹⁵³Ce
¹⁵⁴Ce		0+
¹⁵⁵Ce
¹⁵⁶Ce		0+
¹⁵⁷Ce

Isotopes of Cerium (Z=58)