Mercurial isotope

Mercurial (Hg) has seven kinds of isotopes. 22.86% and a thing existing most abundantly are ²⁰²Hg. The radioisotope having a long life most is ¹⁹⁴Hg, and half-life is 444 years. ^{Half-life of 203}Hg is 46.612 days. In addition, it is half-life with less than one day of most. ¹⁹⁹Hg and ²⁰¹Hg are studied as a nuclear magnetic resonance excitation nucleus with 1/2, spin angular momentum of 3/2 flourishingly each.

The standard atomic weight is 200.59 (2) u.

List

Isotope nuclide	Z(p)	N(n)	I.w. (u)	Half-life	The number of the nuclear spin	Nature abundance	Nature abundance (range)
	Excitation energy
171Hg	80	91	171.00376 (32)#	80(30)µs [59(+36-16)µs]	3/2-#
172Hg	80	92	171.99883 (22)	420 (240)µs [0.25 (+35-9) ms]	0
173Hg	80	93	172.99724 (22)#	1.1 (4) ms [0.6 (+5-2) ms]	3/2-#
174Hg	80	94	173.992864 (21)	2.0 (4) ms [2.1 (+18-7) ms]	0+
175Hg	80	95	174.99142 (11)	10.8 (4) ms	5/2-#
176Hg	80	96	175.987355 (15)	20.4 (15) ms	0+
177Hg	80	97	176.98628 (8)	127.3 (18) ms	5/2-#
178Hg	80	98	177.982483 (14)	0.269 (3) s	0+
179Hg	80	99	178.981834 (29)	1.09 (4) s	5/2-#
180Hg	80	100	179.978266 (15)	2.58 (1) s	0+
181Hg	80	101	180.977819 (17)	3.6 (1) s	1/2(-)
181mHg	210 (40)# keV				13/2+
182Hg	80	102	181.97469 (1)	10.83 (6) s	0+
183Hg	80	103	182.974450 (9)	9.4 (7) s	1/2-
183m1Hg	198 (14) keV				13/2+#
183m2Hg	240 (40)# keV			5# s	13/2+#
184Hg	80	104	183.971713 (11)	30.6 (3) s	0+
185Hg	80	105	184.971899 (17)	49.1 (10) s	1/2-
185mHg	99.3 (5) keV			21.6 (15) s	13/2+
186Hg	80	106	185.969362 (12)	1.38 (6) min	0+
186mHg	2217.3 (4) keV			82(5)µs	(8-)
187Hg	80	107	186.969814 (15)	1.9 (3) min	3/2-
187mHg	59(16) keV			2.4 (3) min	13/2+
188Hg	80	108	187.967577 (12)	3.25 (15) min	0+
188mHg	2724.3 (4) keV			134 (15) ns	(12+)
189Hg	80	109	188.96819 (4)	7.6 (1) min	3/2-
189mHg	80(30) keV			8.6 (1) min	13/2+
190Hg	80	110	189.966322 (17)	20.0 (5) min	0+
191Hg	80	111	190.967157 (24)	49(10) min	3/2(-)
191mHg	128 (22) keV			50.8 (15) min	13/2+
192Hg	80	112	191.965634 (17)	4.85 (20) h	0+
193Hg	80	113	192.966665 (17)	3.80 (15) h	3/2-
193mHg	140.76 (5) keV			11.8 (2) h	13/2+
194Hg	80	114	193.965439 (13)	444 (77) a	0+
195Hg	80	115	194.966720 (25)	10.53 (3) h	1/2-
195mHg	176.07 (4) keV			41.6 (8) h	13/2+
196Hg	80	116	195.965833 (3)	STABLE [>2.5E+18 a]	0+	0.0015 (1)
197Hg	80	117	196.967213 (3)	64.14 (5) h	1/2-
197mHg	298.93 (8) keV			23.8 (1) h	13/2+
198Hg	80	118	197.9667690 (4)	STABLE	0+	0.0997 (20)
199Hg	80	119	198.9682799 (4)	STABLE	1/2-	0.1687 (22)
199mHg	532.48 (10) keV			42.66 (8) min	13/2+
200Hg	80	120	199.9683260 (4)	STABLE	0+	0.2310 (19)
201Hg	80	121	200.9703023 (6)	STABLE	3/2-	0.1318 (9)
201mHg	766.22 (15) keV			94(3)µs	13/2+
202Hg	80	122	201.9706430 (6)	STABLE	0+	0.2986 (26)
203Hg	80	123	202.9728725 (18)	46.595 (6) d	5/2-
203mHg	933.14 (23) keV			24(4)µs	(13/2+)
204Hg	80	124	203.9734939 (4)	STABLE	0+	0.0687 (15)
205Hg	80	125	204.976073 (4)	5.14 (9) min	1/2-
205mHg	1556.40 (17) keV			1.09 (4) ms	13/2+
206Hg	80	126	205.977514 (22)	8.15 (10) min	0+
207Hg	80	127	206.98259 (16)	2.9 (2) min	(9/2+)
208Hg	80	128	207.98594 (32)#	42(5) min [41 (+5-4) min]	0+
209Hg	80	129	208.99104 (21)#	37(8) s	9/2+#
210Hg	80	130	209.99451 (32)#	10# min [> 300 ns]	0+

References

• Isotope masses from Ame2003 Atomic Mass Evaluation by G. Audi, A.H. Wapstra, C. Thibault, J. Blachot and O. Bersillon in Nuclear Physics A729 (2003).
• Isotopic compositions and standard atomic masses from Atomic weights of the elements. Review 2000 (IUPAC Technical Report). Pure Appl. Chem. Vol. 75, No. 6, pp. 683-800, (2003) and Atomic Weights Revised (2005).
• Half-life, spin, and isomer data selected from these sources. Editing notes on this article's talk page.
  • Audi, Bersillon, Blachot, Wapstra. The Nubase2003 evaluation of nuclear and decay properties, Nuc. Phys. A 729, pp. 3-128 (2003).
  • National Nuclear Data Center, Brookhaven National Laboratory. Information extracted from the NuDat 2.1 database (retrieved Sept. 2005).
  • David R. Lide (ed.), Norman E. Holden in CRC Handbook of Chemistry and Physics, 85th Edition, online version. CRC Press. Boca Raton, Florida (2005). Section 11, Table of the Isotopes.

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