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Neon (10 Ne) possesses three stable isotopes: 20 Ne, 21 Ne, and 22 Ne. In addition, 17 radioactive isotopes have been discovered, ranging from 15 Ne to 34 Ne, all short-lived. The longest-lived is 24 Ne with a half-life of 3.38(2) min. All others are under a minute, most under a second. The least stable is 15 Ne
Neon has three stable isotopes: 20 Ne (90.48%), 21 Ne (0.27%) and 22 Ne (9.25%). [13] 21 Ne and 22 Ne are partly primordial and partly nucleogenic (i.e. made by nuclear reactions of other nuclides with neutrons or other particles in the environment) and their variations in natural abundance are well understood.
atomic mass Electronegativity (Pauling) First Ionization Energy Radii Valence electrons; Atomic Van der Waals ... Ne: 20.1797(6) — 21.5646: 38: 154: 69: 8 ...
Example: the pie chart for boron shows it to be composed of about 20% 10 B and 80% 11 B. This isotope mix causes the atomic weight of ordinary Earthly boron samples to be expected to fall within the interval 10.806 to 10.821. and this interval is the standard atomic weight.
This is because the mass–energy is a convex function of atomic number, ... 20 Ne 21 Na 22 Mg 23 Al. 24 Si Cl Ar 19; 11 15 Be 16 B 17 C 18 N 19 O 20 F 21 Ne 22 Na ...
[97] [103] 21 Ne and 22 Ne are produced in the earth's crust as a result of interactions between alpha and neutron particles with light elements; 18 O, 19 F and 24,25 Mg. [104] The neon ratios (20 Ne/ 22 Ne and 21 Ne/ 22 Ne) are systematically used to discern the heterogeneity in the Earth's mantle and volatile sources. Complimenting He isotope ...
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20 Ne 21 Na 22 Mg 23 Al. 24 Si Cl Ar 19; 11 15 Be 16 B 17 C 18 N 19 O 20 F 21 Ne 22 Na. 23 Mg 24 Al. 25 Si 26 P 27 S ... This page was last edited on 20 December 2022 ...