Mercury-214

Properties and data of the isotope ²¹⁴Hg.

Contents

See also: List of individual Mercury isotopes (and general data sources).

General data

Name of the isotope:Mercury-214; Hg-214Symbol:²¹⁴Hg or 21480HgMass number A:214 (= number of nucleons)Atomic number Z:80 (= number of protons)Neutrons N:134Nucleon pairing (Z - N):even - evenNuclear ratio (N/Z ratio):1.675 (= neutron-proton ratio)Neutron excess (N-Z):54Isotopic mass:214.01200(43) u (atomic weight of Mercury-214)Nuclide mass:213.9681184 u (calculated nuclear mass without electrons)Mass excess:11.17793 MeVMass defect:1.775101304 u (per nucleus)Nuclear binding energy:1653.49621407 MeV (per nucleus)
7.72661782 MeV (average binding energy per nucleon)Separation energy:S_N = 4.56(50) MeV (first neutron)Half-life:> 300 nsDecay constant λ:2310490.6018665 s^-1Specific activity α:6.501551141570 × 10⁺²⁷ Bq g^-1
1.757175984208 × 10⁺¹⁷ Ci g^-1Spin and parity:
(nuclear angular momentum)0+Year of discovery:2010

Radioactive Decay

Half-life T_½ = > 300 ns respectively 3.0 × 10^-7 seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
β^-	²¹⁴Tl	?	4.71(45) MeV
β^-, n	²¹³Tl	?	1.32(40) MeV

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 134) and isobaric (same nucleon number A = 214) with Mercury-214. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 134	Isobar A = 214
80	²¹⁴Hg	²¹⁴Hg
81	²¹⁵Tl	²¹⁴Tl
82	²¹⁶Pb	²¹⁴Pb
83	²¹⁷Bi	²¹⁴Bi
84	²¹⁸Po	²¹⁴Po
85	²¹⁹At	²¹⁴At
86	²²⁰Rn	²¹⁴Rn
87	²²¹Fr	²¹⁴Fr
88	²²²Ra	²¹⁴Ra
89	²²³Ac	²¹⁴Ac
90	²²⁴Th	²¹⁴Th
91	²²⁵Pa	²¹⁴Pa
92	²²⁶U	²¹⁴U
93	²²⁷Np
94	²²⁸Pu
95	²²⁹Am