Ca

Calcium

Z 20 40.078 g/molAlkaline Earth Metal

Overview Atomic Properties Thermodynamics Electromagnetism Isotopes


⁴⁰Ca	20	39.9626	-34,846.402	96.941%	Stable	0+	β⁺	1922
⁴⁴Ca	24	43.9555	-41,468.7	2.086%	Stable	0+	---	1922
⁴²Ca	22	41.9586	-38,547.29	0.647%	Stable	0+	---	1934
⁴⁸Ca	28	47.9525	-44,224.868	0.187%	56.0 Ey	0+	β⁻ β⁻⁴⁸Sc	1938
⁴³Ca	23	42.9588	-38,408.87	0.135%	Stable	7/2-	---	1934
⁴⁶Ca	26	45.9537	-43,139.6	0.004%	Stable	0+	β⁻	1938
³³Ca	13	33.0333	31,030.0	---	---	(5/2+)	p³²K	---
³⁴Ca	14	34.016	14,890.0	---	---	0+	p³²Ar	---
³⁵Ca	15	35.0056	5,190.0	---	25.7 ms	(1/2+)	β⁺p³⁴Ar(95.8%) β⁺p³³Cl(4.2%)	1985
³⁶Ca	16	35.9931	-6,450.0	---	100.9 ms	0+	β⁺p³⁵Ar(51.2%) β⁺³⁶K(48.8%)	1977
³⁷Ca	17	36.9859	-13,136.1	---	181.0 ms	3/2+	β⁺p³⁶Ar(76.8%) β⁺³⁷K(23.2%)	1964
³⁸Ca	18	37.9763	-22,058.5	---	443.7 ms	0+	β⁺³⁸K(100%)	1966
³⁹Ca	19	38.9707	-27,282.7	---	860.3 ms	3/2+	β⁺³⁹K(100%)	1943
⁴¹Ca	21	40.9623	-35,137.91	---	99.4 ky	7/2-	EC⁴¹K(100%)	1939
⁴⁵Ca	25	44.9562	-40,812.2	---	162.61 d	7/2-	β⁻⁴⁵Sc(100%)	1940
⁴⁷Ca	27	46.9545	-42,344.7	---	4.54 d	7/2-	β⁻⁴⁷Sc(100%)	1951
⁴⁹Ca	29	48.9557	-41,300.0	---	8.72 m	3/2-	β⁻⁴⁹Sc(100%)	1950
⁵⁰Ca	30	49.9575	-39,589.2	---	13.45 s	0+	β⁻⁵⁰Sc(100%)	1964
⁵¹Ca	31	50.961	-36,332.3	---	10.0 s	3/2-	β⁻⁵¹Sc(100%) β⁻n⁵⁰Sc	1980
⁵²Ca	32	51.9632	-34,266.3	---	4.6 s	0+	β⁻⁵²Sc(100%) β⁻n⁵¹Sc(<2%)	1985
⁵³Ca	33	52.9684	-29,390.0	---	461.0 ms	(1/2-)	β⁻⁵³Sc(60%) β⁻n⁵²Sc(40%)	1983
⁵⁴Ca	34	53.973	-25,160.0	---	90.0 ms	0+	β⁻⁵⁴Sc(100%) β⁻n⁵³Sc β⁻n⁵²Sc	1997
⁵⁵Ca	35	54.98	-18,650.0	---	22.0 ms	(5/2-)	β⁻⁵⁵Sc(100%) β⁻n⁵⁴Sc β⁻n⁵³Sc	1997
⁵⁶Ca	36	55.9855	-13,510.0	---	11.0 ms	0+	β⁻⁵⁶Sc(100%) β⁻n⁵⁵Sc β⁻n⁵⁴Sc	1997
⁵⁷Ca	37	56.993	-6,560.0	---	8.0 ms	(5/2-)	β⁻⁵⁷Sc β⁻n⁵⁶Sc β⁻n⁵⁵Sc	2009
⁵⁸Ca	38	57.9984	-1,530.0	---	4.0 ms	0+	β⁻⁵⁸Sc β⁻n⁵⁷Sc β⁻n⁵⁶Sc	2009
⁵⁹Ca	39	59.0062	5,810.0	---	5.0 ms	(5/2-)	β⁻⁵⁹Sc β⁻n⁵⁸Sc β⁻n⁵⁷Sc	2018
⁶⁰Ca	40	60.0118	11,000.0	---	2.0 ms	0+	β⁻⁶⁰Sc β⁻n⁵⁹Sc β⁻n⁵⁸Sc	2018
⁶¹Ca	41	61.0204	19,010.0	---	1.0 ms	(1/2-)	β⁻⁶¹Sc β⁻n⁶⁰Sc β⁻n⁵⁹Sc	---