Nuklida · stabil · alami

Raksa-198 (¹⁹⁸Hg)

Raksa-198 (¹⁹⁸Hg) adalah isotop stabil raksa dengan 80 proton dan 118 neutron (nomor massa 198). Kelimpahan alaminya 0.1004(3).

Data nuklida

Unsur: Raksa (Hg, Z = 80)
Nomor massa (A): 198
Proton (Z): 80
Neutron (N): 118
Massa atom: 197.966769177 ± 0.000000491 u
Waktu paruh: Stabil
Mode peluruhan: Tidak meluruh
Kelimpahan alami: 0.1004(3)
Tahun penemuan: 1925
Sumber data: IAEA Atomic Mass Data Center (NUBASE) and IUPAC CIAAW, via PubChem

198Hg, 200Hg, and 202Hg are stable isotopes of mercury that can be used to study environmental sources and environmental sinks of this element in aquatic and terrestrial ecosystems. For example, in an ecosystem, different stable isotopes of mercury can be added to an upland region for run-off evaluation, to a lake for direct deposition analysis, and to a wetland region for outflow contribution analysis (Fig. IUPAC.80.1). As a result, it is possible to determine the entry points of mercury into an ecosystem and determine how the inputs of mercury affect the accumulation of this element in local fish populations. An international consortium of scientists is conducting an experiment called METAALICUS (Mercury Experiment To Assess Atmospheric Loading In Canada and the U.S.). This experiment includes determination of whether mercury contamination in fish is old or new mercury. Tracer studies were performed in northwestern Ontario at the Experimental Lakes Area of the Department of Fisheries and Oceans Canada.