Boron-10 (¹⁰B)

Data nuklida

Unsur

Boron (B, Z = 5)

Nomor massa (A)

10

Proton (Z)

5

Neutron (N)

5

Massa atom

10.012936862 ± 0.000000016 u

Waktu paruh

Stabil

Mode peluruhan

Tidak meluruh

Kelimpahan alami

[0.189, 0.204]

Tahun penemuan

1920

Sumber data

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

Kegunaan isotop boron

• Molecules, atoms, and ions of the stable isotopes of boron possess slightly different physical and chemical properties, and they commonly will be fractionated during physical, chemical, and biological processes, giving rise to variations in isotopic abundances and in atomic weights. Natural terrestrial materials show a substantial variation in boron isotopic abundance (Fig. IUPAC.5.1). The relative abundances of 10B and 11B have been used in a variety of environmental tracer applications,. The isotope-amount ratio n(11B)/n(10B) of boron in a water sample depends on the source of the water and region through which the water flows, and it may also be affected by some types of contamination, such as dissolved borate in domestic wastewater. Different water sources may have their own distinct boron isotopic composition, e.g. seawater versus water from continental sources (Fig. IUPAC.5.1).
• The large value of the absorption cross section of 10B for thermal neutrons makes this isotope useful for counting neutrons. 10B is being studied as a potential replacement for 3He in radiation detectors,,. The large thermal absorption cross section of 10B makes the isotope useful in control rods (Fig. IUPAC.5.2).
• 10B has a high thermal neutron absorption cross section and can readily absorb neutrons via the reaction 10B+n→ 7Li+α. The alpha particles resulting from this reaction carry away a relatively large kinetic energy and are useful for the treatment of malignant tumors in cancer patients,,.

Isotop boron lainnya

⁶B, ⁷B, ⁸B, ⁹B, ¹¹B, ¹²B, ¹³B, ¹⁴B, ¹⁵B, ¹⁶B, ¹⁷B, ¹⁸B, ¹⁹B, ²⁰B, ²¹B

Pelajari

Kimia inti Simulasi peluruhan ¹⁰B Bagan nuklida