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Of these radioisotopes, the most stable are 106 Ru with a half-life of 373.59 days, 103 Ru with a half-life of 39.26 days and 97 Ru with a half-life of 2.9 days. [ 17 ] [ 18 ] Fifteen other radioisotopes have been characterized with atomic weights ranging from 89.93 Da ( 90 Ru) to 114.928 Da ( 115 Ru).
However there are numerous exceptions; for example the lightest exception is chromium, which would be predicted to have the configuration 1s 2 2s 2 2p 6 3s 2 3p 6 3d 4 4s 2, written as [Ar] 3d 4 4s 2, but whose actual configuration given in the table below is [Ar] 3d 5 4s 1. Note that these electron configurations are given for neutral atoms in ...
Atomic number (Z): 44: Group: group 8: Period: period 5: Block d-block Electron configuration [] 4d 7 5sElectrons per shell: 2, 8, 18, 15, 1: Physical properties ...
Og, 118, oganesson : 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 6 5s 2 4d 10 5p 6 6s 2 4f 14 5d 10 6p 6 7s 2 5f 14 6d 10 7p 6 Note that these electron configurations are given for neutral atoms in the gas phase, which are not the same as the electron configurations for the same atoms in chemical environments.
Group 8 is a group (column) of chemical elements in the periodic table.It consists of iron (Fe), ruthenium (Ru), osmium (Os) and hassium (Hs). [1] " Group 8" is the modern standard designation for this group, adopted by the IUPAC in 1990. [1]
Electron configurations of the chemical elements (neutral gaseous atoms in the ground state; ... 2 5 - 44 Ru 1 7 - 45 Rh 1 8 - 46 Pd-10 - 47 Ag 1 10 - 48 Cd 2
This page uses the meta infobox {{Infobox isotopes (meta)}} for the element isotopes infobox.. This infobox contains the table of § Main isotopes, and the § Standard atomic weight.
Most of these have half-lives that are less than five minutes, except 94 Ru (half-life: 51.8 minutes), 95 Ru (half-life: 1.643 hours), and 105 Ru (half-life: 4.44 hours). The primary decay mode before the most abundant isotope, 102 Ru, is electron capture and the primary mode after is beta emission .