Search results
Results From The WOW.Com Content Network
Electron configuration 4f 14 5d 10 6s 2 6p 4: Electrons per shell: 2, 8, 18, 32, 18, 6: ... Polonium is a chemical element; it has symbol Po and atomic number 84.
This page shows the electron configurations of the neutral gaseous atoms in their ground states. For each atom the subshells are given first in concise form, then with all subshells written out, followed by the number of electrons per shell. For phosphorus (element 15) as an example, the concise form is [Ne] 3s 2 3p 3.
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. Ne, 10, neon : 1s 2 2s 2 2p 6. Ar, 18, argon : 1s 2 2s 2 2p 6 3s 2 3p 6.
Polonium is a radioactive, soft metal with a hardness similar to lead. [160] It has a simple cubic crystalline structure characterised (as determined by electron density calculations) by partially directional bonding, [ 161 ] and a BCN of 6.
v. t. e. In chemistry, a transition metal (or transition element) is a chemical element in the d-block of the periodic table (groups 3 to 12), though the elements of group 12 (and less often group 3) are sometimes excluded. The lanthanide and actinide elements (the f-block) are called inner transition metals and are sometimes considered to be ...
[4] [96] The electron of a hydrogen-like livermorium atom (oxidized so that it only has one electron, Lv 115+) is expected to move so fast that it has a mass 1.86 times that of a stationary electron, due to relativistic effects. For comparison, the figures for hydrogen-like polonium and tellurium are expected to be 1.26 and 1.080 respectively. [94]
Polonium is a chemical element with the symbol Po and atomic number 84, discovered in 1898 by Marie Skłodowska-Curie and Pierre Curie. A rare and highly radioactive element, polonium is chemically similar to bismuth [ 44 ] and tellurium , and it occurs in uranium ores .
The chalcogens (ore forming) (/ ˈkælkədʒənz / KAL-kə-jənz) are the chemical elements in group 16 of the periodic table. [1] This group is also known as the oxygen family. Group 16 consists of the elements oxygen (O), sulfur (S), selenium (Se), tellurium (Te), and the radioactive elements polonium (Po) and livermorium (Lv). [2]