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Atomic number (Z): 39: Group: group 3: Period: period 5: Block d-block Electron configuration [] 4d 1 5sElectrons per shell: 2, 8, 18, 9, 2: Physical properties ...
Printable version; In other projects ... Electron configurations of the chemical elements (neutral gaseous atoms in the ... Y 2 1 - 40 Zr 2 2 - 41 Nb 1 4 - 42 Mo 1 5 ...
This is a list of chemical elements and their atomic properties, ordered by atomic number (Z).. Since valence electrons are not clearly defined for the d-block and f-block elements, there not being a clear point at which further ionisation becomes unprofitable, a purely formal definition as number of electrons in the outermost shell has been used.
Yttrium is a chemical element; it has symbol Y and atomic number 39. It is a silvery-metallic transition metal chemically similar to the lanthanides and has often been classified as a "rare-earth element". [8] Yttrium is almost always found in combination with lanthanide elements in rare-earth minerals and is never found in nature as a free ...
Group: group 3: Period: period 5: Block d-block Electron configuration [] 4d 1 5sElectrons per shell: 2, 8, 18, 9, 2: Physical properties; Phase at STP: solid ...
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.
In many cases, multiple configurations are within a small range of energies and the irregularities shown below do not necessarily have a clear relation to chemical behaviour. [1] For the undiscovered eighth-row elements, mixing of configurations is expected to be very important, and sometimes the result can no longer be well-described by a ...
Configurations of elements 109 and above are not available. Predictions from reliable sources have been used for these elements. Grayed out electron numbers indicate subshells filled to their maximum. Bracketed noble gas symbols on the left represent inner configurations that are the same in each period. Written out, these are: He, 2, helium : 1s 2