Perak-109 (¹⁰⁹Ag)

Data nuklida

Unsur

Perak (Ag, Z = 47)

Nomor massa (A)

109

Proton (Z)

47

Neutron (N)

62

Massa atom

108.904755778 ± 0.000001381 u

Waktu paruh

Stabil

Mode peluruhan

Tidak meluruh

Kelimpahan alami

0.481 61(8)

Tahun penemuan

1924

Sumber data

IAEA Atomic Mass Data Center (NUBASE) and IUPAC CIAAW, via PubChem

Kegunaan isotop perak

• The measurement of relative amounts of 107Ag and 109Ag is used to study the processes responsible for the isotopic fractionation of silver isotopes in ore deposits, which depends on the specific minerals and environmental conditions. This is currently an area of active research and it is thought that the relative amounts of the isotopes of silver are altered during the formation of the ore,.
• Silver isotope-amount ratiosn(107Ag)/n(109Ag) along with isotope-amount ratios of copper n(65Cu)/n(63Cu), and isotope-amount ratios of lead (n(206Pb)/n(204Pb), n(207Pb)/n(204Pb) and n(208Pb)/n(204Pb)) have been used to determine origins of European coins and information on the flow of goods in the world market over time (Fig. IUPAC.47.1). Metals from Peru and Mexico and those from European mining have distinct isotopic signatures that enable the origin of the metal to be determined by examining the isotopic compositions of silver, copper, and lead in the coins. Abundant silver sources, mined in Mexico and Peru in the 16 th century, were used to mint coins, but they were not a major influence in the European coin market until the 18 th century (Fig. IUPAC.47.1).
• 107Ag is being studied as a possible target for cyclotron production of 103Pd (with a half-life of 17 days) via the 107Ag (p, α n) 103Pd reaction. 103Pd releases X-rays and Auger electrons at the rate of about 80 X-rays and 186 Auger electrons per 100 decays of 103Pd, which makes this isotope an ideal candidate for internal radiotherapy for the treatment of cancers. The production of this isotope in a no-carrier form (not formed in another solution) is important for its medical uses. By using neutrons, photons, and charged particles to force reactions with isotopes of a higher mass number than 103, 103Pd will occur in a fraction of those reactions. The most common methods of 103Pd production use targets of rhodium or other isotopes of palladium. However, 107Ag has also been studied as a feasible option,. 109Ag is used to produce the gamma reference source 110mAg to help calibrate gamma detectors,.

Isotop perak lainnya

⁹²Ag, ⁹³Ag, ⁹⁴Ag, ⁹⁵Ag, ⁹⁶Ag, ⁹⁷Ag, ⁹⁸Ag, ⁹⁹Ag, ¹⁰⁰Ag, ¹⁰¹Ag, ¹⁰²Ag, ¹⁰³Ag, ¹⁰⁴Ag, ¹⁰⁵Ag, ¹⁰⁶Ag, ¹⁰⁷Ag, ¹⁰⁸Ag, ¹¹⁰Ag, ¹¹¹Ag, ¹¹²Ag, ¹¹³Ag, ¹¹⁴Ag, ¹¹⁵Ag, ¹¹⁶Ag, ¹¹⁷Ag, ¹¹⁸Ag, ¹¹⁹Ag, ¹²⁰Ag, ¹²¹Ag, ¹²²Ag, ¹²³Ag, ¹²⁴Ag, ¹²⁵Ag, ¹²⁶Ag, ¹²⁷Ag, ¹²⁸Ag, ¹²⁹Ag, ¹³⁰Ag, ¹³¹Ag, ¹³²Ag, ¹³³Ag

Pelajari

Kimia inti Simulasi peluruhan ¹⁰⁹Ag Bagan nuklida