Encyclopedia > S-block

Article Content

S-block

Groups 1A (alkali metals) and 2A (alkaline earth metals) of the periodic table, Hydrogen, and helium make up the S-block (for sharp) elements. These elements have noble gas structures.

An s orbital can hold a maximum of 2 electrons.

Other Blocks:

d-block
f-block
g-block
p-block

See Electron shell, Orbitals

All Wikipedia text is available under the terms of the GNU Free Documentation License

Search Encyclopedia

Search over one million articles, find something about almost anything!

Featured Article

Quioque, New York

... under the age of 18 living with them, 42.6% are married couples living together, 11.9% have a female householder with no husband present, and 42.6% are non-families. 36.3% ...