The g-block of the periodic table of elements consists of those elements for which, in the atomic ground state, the highest-energy electrons occupy g-orbitals. No elements belonging to the g-block have been discovered, but its existence is predicted by a model well-established in quantum mechanics.

See also

• Periodic table block
  • s-block
  • p-block
  • d-block
  • f-block
• Electron configuration
• Unbiunium