Nuklida · stabil · alami
Neon-21 (²¹Ne)
Neon-21 (²¹Ne) adalah isotop stabil neon dengan 10 proton dan 11 neutron (nomor massa 21). Kelimpahan alaminya 0.0027(1).
Data nuklida
- Unsur
- Neon (Ne, Z = 10)
- Nomor massa (A)
- 21
- Proton (Z)
- 10
- Neutron (N)
- 11
- Massa atom
- 20.993846685 ± 0.000000041 u
- Waktu paruh
- Stabil
- Mode peluruhan
- Tidak meluruh
- Kelimpahan alami
- 0.0027(1)
- Tahun penemuan
- 1928
- Sumber data
- IAEA Atomic Mass Data Center (NUBASE) and IUPAC CIAAW, via PubChem
Kegunaan isotop neon
- Some 21Ne and 22Ne form naturally in the Earth’s crust largely by reactions of 18O and 19F in minerals with neutrons and alpha particles emitted from uranium and thorium decay, called nucleogenic neon isotopes,. In addition, neon isotopes can form at the surface of the Earth and in extraterrestrial bodies by cosmic-ray-induced spallation reactions on magnesium, silicon, aluminum, and sodium,. Analyses of all three stable neon isotopes may be used to distinguish these sources from primordial neon. The relative amounts of atmospheric neon and crustal nucleogenic neon isotopes in deep groundwaters and natural gases have been used in studies of solid-water-gas interactions and migration (Fig. IUPAC.10.1). The cosmogenic component is mainly detected in 21Ne and can be used to determine cosmic-ray exposure ages of rock samples, including meteorites exposed during travel through space and boulders exposed by melting of glacial ice (Fig. IUPAC.10.1).
- Masers (Microwave Amplification by Stimulated Emission of Radiation) containing 20Ne have been used to study quantum physics. 21Ne may also play a role in maser studies of quantum physics.
Isotop neon lainnya
¹⁵Ne, ¹⁶Ne, ¹⁷Ne, ¹⁸Ne, ¹⁹Ne, ²⁰Ne, ²²Ne, ²³Ne, ²⁴Ne, ²⁵Ne, ²⁶Ne, ²⁷Ne, ²⁸Ne, ²⁹Ne, ³⁰Ne, ³¹Ne, ³²Ne, ³³Ne, ³⁴Ne