English Wikipedia - The Free Encycl...
הורד מילון זה
Block (periodic table)
A block of the periodic table of elements is a set of adjacent groups. The term appears to have been first used by Charles Janet. The respective highest-energy electrons in each element in a block belong to the same atomic orbital type. Each block is named after its characteristic orbital; thus, the blocks are:
  • s-block
  • p-block
  • d-block
  • f-block
  • g-block (hypothetical)

See more at Wikipedia.org...

© This article uses material from Wikipedia® and is licensed under the GNU Free Documentation License and under the Creative Commons Attribution-ShareAlike License