Radyum izotopları: Revizyonlar arasındaki fark

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Sayfanın 08.46, 11 Mayıs 2021 tarihindeki hâli

Radyumun (₈₈Ra) bilinen izotopları, ²⁰²Ra ile ²³⁴Ra aralığında ve tamamı radyoaktif olup toplamda 33 tanedir. Yarı ömrü 1600 yıl olan ²²⁶Ra en kararlı ve en yaygın bulunan radyum izotopudur.^[1]^[2]^[3]^[4]

İzotoplar

Nüklit	Tarihî adı	Z	N	İzotop kütlesi (Da)	Yarı ömür	Bozunma türü	Yavru izotop	Spin ve parite	İzotop çokluğu
²⁰²Ra		88	114	202,00989(7)	2,6(21) ms [0,7(+33-3) ms]			0+
²⁰³Ra		88	115	203,00927(9)	4(3) ms	α	¹⁹⁹Rn	(3/2-)
²⁰³Ra		88	115	203,00927(9)	4(3) ms	β⁺ (nadir)	²⁰³Fr	(3/2-)
^203mRa		220(90) keV			41(17) ms	α	¹⁹⁹Rn	(13/2+)
^203mRa		220(90) keV			41(17) ms	β⁺ (nadir)	²⁰³Fr	(13/2+)
²⁰⁴Ra		88	116	204,006500(17)	60(11) ms [59(+12-9) ms]	α (%99,7)	²⁰⁰Rn	0+
²⁰⁴Ra		88	116	204,006500(17)	60(11) ms [59(+12-9) ms]	β⁺ (%0,3)	²⁰⁴Fr	0+
²⁰⁵Ra		88	117	205,00627(9)	220(40) ms [210(+60-40) ms]	α	²⁰¹Rn	(3/2-)
²⁰⁵Ra		88	117	205,00627(9)	220(40) ms [210(+60-40) ms]	β⁺ (nadir)	²⁰⁵Fr	(3/2-)
^205mRa		310(110)# keV			180(50) ms [170(+60-40) ms]	α	²⁰¹Rn	(13/2+)
^205mRa		310(110)# keV			180(50) ms [170(+60-40) ms]	İG (nadir)	²⁰⁵Ra	(13/2+)
²⁰⁶Ra		88	118	206,003827(19)	0,24(2) s	α	²⁰²Rn	0+
²⁰⁷Ra		88	119	207,00380(6)	1,3(2) s	α (%90)	²⁰³Rn	(5/2-, 3/2-)
²⁰⁷Ra		88	119	207,00380(6)	1,3(2) s	β⁺ (%10)	²⁰⁷Fr	(5/2-, 3/2-)
^207mRa		560(50) keV			57(8) ms	İG (%85)	²⁰⁷Ra	(13/2+)
						α (%15)	²⁰³Rn
						β⁺ (%0,55)	²⁰⁷Fr
²⁰⁸Ra		88	120	208,001840(17)	1,3(2) s	α (%95)	²⁰⁴Rn	0+
²⁰⁸Ra		88	120	208,001840(17)	1,3(2) s	β⁺ (%5)	²⁰⁸Fr	0+
^208mRa		1800(200) keV			270 ns			(8+)
²⁰⁹Ra		88	121	209,00199(5)	4,6(2) s	α (%90)	²⁰⁵Rn	5/2-
²⁰⁹Ra		88	121	209,00199(5)	4,6(2) s	β⁺ (%10)	²⁰⁹Fr	5/2-
²¹⁰Ra		88	122	210,000495(16)	3,7(2) s	α (%96)	²⁰⁶Rn	0+
²¹⁰Ra		88	122	210,000495(16)	3,7(2) s	β⁺ (%4)	²¹⁰Fr	0+
^210mRa		1800(200) keV			2,24 μs			(8+)
²¹¹Ra		88	123	211,000898(28)	13(2) s	α (%97)	²⁰⁷Rn	5/2(-)
²¹¹Ra		88	123	211,000898(28)	13(2) s	β⁺ (%3)	²¹¹Fr	5/2(-)
²¹²Ra		88	124	211,999794(12)	13,0(2) s	α (%85)	²⁰⁸Rn	0+
²¹²Ra		88	124	211,999794(12)	13,0(2) s	β⁺ (%15)	²¹²Fr	0+
^212m1Ra		1958,4(5) keV			10,9(4) μs			(8)+
^212m2Ra		2613,4(5) keV			0,85(13) μs			(11)-
²¹³Ra		88	125	213,000384(22)	2,74(6) dk	α (%80)	²⁰⁹Rn	1/2-
²¹³Ra		88	125	213,000384(22)	2,74(6) dk	β⁺ (%20)	²¹³Fr	1/2-
^213mRa		1769(6) keV			2,1(1) ms	İG (%99)	²¹³Ra	17/2-#
^213mRa		1769(6) keV			2,1(1) ms	α (%1)	²⁰⁹Rn	17/2-#
²¹⁴Ra		88	126	214,000108(10)	2,46(3) s	α (%99,94)	²¹⁰Rn	0+
²¹⁴Ra		88	126	214,000108(10)	2,46(3) s	β⁺ (%0,06)	²¹⁴Fr	0+
²¹⁵Ra		88	127	215,002720(8)	1,55(7) ms	α	²¹¹Rn	(9/2+)#
^215m1Ra		1877,8(5) keV			7,1(2) μs			(25/2+)
^215m2Ra		2246,9(5) keV			1,39(7) μs			(29/2-)
^215m3Ra		3756,6(6)+X keV			0,555(10) μs			(43/2-)
²¹⁶Ra		88	128	216,003533(9)	182(10) ns	α	²¹²Rn	0+
²¹⁶Ra		88	128	216,003533(9)	182(10) ns	EY (%1×10^-8)	²¹⁶Fr	0+
²¹⁷Ra		88	129	217,006320(9)	1,63(17) μs	α	²¹³Rn	(9/2+)
²¹⁸Ra		88	130	218,007140(12)	25,2(3) μs	α	²¹⁴Rn	0+
²¹⁸Ra		88	130	218,007140(12)	25,2(3) μs	β⁺β⁺ (nadir)	²¹⁸Rn	0+
²¹⁹Ra		88	131	219,010085(9)	10(3) ms	α	²¹⁵Rn	(7/2)+
²²⁰Ra		88	132	220,011028(10)	17,9(14) ms	α	²¹⁶Rn	0+
²²¹Ra		88	133	221,013917(5)	28(2) s	α	²¹⁷Rn	5/2+	Eser^[a]
²²¹Ra		88	133	221,013917(5)	28(2) s	KB (%1,2×10^-10)	²⁰⁷Pb ¹⁴C	5/2+	Eser^[a]
²²²Ra		88	134	222,015375(5)	38,0(5) s	α	²¹⁸Rn	0+
²²²Ra		88	134	222,015375(5)	38,0(5) s	KB (%3×10^-8)	²⁰⁸Pb ¹⁴C	0+
²²³Ra	Actinium X	88	135	223,0185022(27)	11,43(5) g	α	²¹⁹Rn	3/2+	Eser^[b]
²²³Ra	Actinium X	88	135	223,0185022(27)	11,43(5) g	KB (%6,4×10^-8)	²⁰⁹Pb ¹⁴C	3/2+	Eser^[b]
²²⁴Ra	Thorium X	88	136	224,0202118(24)	3,6319(23) g	α	²²⁰Rn	0+	Eser^[c]
²²⁴Ra	Thorium X	88	136	224,0202118(24)	3,6319(23) g	KB (%4,3×10^-9)	²¹⁰Pb ¹⁴C	0+	Eser^[c]
²²⁵Ra		88	137	225,023612(3)	14,9(2) g	β^-	²²⁵Ac	1/2+	Eser^[a]
²²⁶Ra	Radyum^[d]	88	138	226,0254098(25)	1600(7) y	α	²²²Rn	0+	Eser^[e]
						β^-β^- (nadir)	²²⁶Th
						KB (%2,6×10^-9)	²¹²Pb ¹⁴C
²²⁷Ra		88	139	227,0291778(25)	42,2(5) dk	β^-	²²⁷Ac	3/2+
²²⁸Ra	Mezotoryum 1	88	140	228,0310703(26)	5,75(3) y	β^-	²²⁸Ac	0+	Eser^[c]
²²⁹Ra		88	141	229,034958(20)	4,0(2) dk	β^-	²²⁹Ac	5/2(+)
²³⁰Ra		88	142	230,037056(13)	93(2) dk	β^-	²³⁰Ac	0+
²³¹Ra		88	143	231,04122(32)#	103(3) s	β^-	²³¹Ac	(5/2+)
^231mRa		66,21(9) keV			~53 μs			(1/2+)
²³²Ra		88	144	232,04364(30)#	250(50) s	β^-	²³²Ac	0+
²³³Ra		88	145	233,04806(50)#	30(5) s	β^-	²³³Ac	1/2+#
²³⁴Ra		88	146	234,05070(53)#	30(10) s	β^-	²³⁴Ac	0+

Notlar

# ile işaretlenen değerler tamamen deneyler sonucu elde edilen veriler değildir ve kısmen sistematik eğilimle göre belirlenmiştir.

Kaynakça

Şablon:Portal

^ de Laeter, John Robert; Böhlke, John Karl; De Bièvre, Paul; Hidaka, Hiroshi; Peiser, H. Steffen; Rosman, Kevin J. R.; Taylor, Philip D. P. (2003). "Atomic weights of the elements. Review 2000 (IUPAC Technical Report)". Pure and Applied Chemistry. 75 (6): 683-800. doi:10.1351/pac200375060683.
^ Wieser, Michael E. (2006). "Atomic weights of the elements 2005 (IUPAC Technical Report)". Pure and Applied Chemistry (İngilizce). 78 (11): 2051-2066. doi:10.1351/pac200678112051. Diğer özet.
^ Holden, Norman E. (2004). "11. Table of the Isotopes". Lide, David R. (Ed.). CRC Handbook of Chemistry and Physics (İngilizce) (85th bas.). Boca Raton, Florida: CRC Press. ISBN 978-0-8493-0485-9.
^ Audi, Georges; Bersillon, Olivier; Blachot, Jean; Wapstra, Aaldert Hendrik (2003), "The NUBASE evaluation of nuclear and decay properties", Nuclear Physics A (İngilizce), cilt 729, ss. 3-128, Bibcode:2003NuPhA.729....3A, doi:10.1016/j.nuclphysa.2003.11.001

Kaynak hatası: <ref> "lower-alpha" adında grup ana etiketi bulunuyor, ancak <references group="lower-alpha"/> etiketinin karşılığı bulunamadı (Bkz: Kaynak gösterme)

[1] Laeter, John Robert; Böhlke, John Karl; De Bièvre, Paul; Hidaka, Hiroshi; Peiser, H. Steffen; Rosman, Kevin J. R.; Taylor, Philip D. P. (2003). "Atomic weights of the elements. Review 2000 (IUPAC Technical Report)". Pure and Applied Chemistry. 75 (6): 683-800. doi:10.1351/pac200375060683.

[2] Wieser, Michael E. (2006). "Atomic weights of the elements 2005 (IUPAC Technical Report)". Pure and Applied Chemistry (İngilizce). 78 (11): 2051-2066. doi:10.1351/pac200678112051. Diğer özet.

[3] Holden, Norman E. (2004). "11. Table of the Isotopes". Lide, David R. (Ed.). CRC Handbook of Chemistry and Physics (İngilizce) (85th bas.). Boca Raton, Florida: CRC Press. ISBN 978-0-8493-0485-9.

[4] Audi, Georges; Bersillon, Olivier; Blachot, Jean; Wapstra, Aaldert Hendrik (2003), "The NUBASE evaluation of nuclear and decay properties", Nuclear Physics A (İngilizce), cilt 729, ss. 3-128, Bibcode:2003NuPhA.729....3A, doi:10.1016/j.nuclphysa.2003.11.001

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