Mẹ́tàlì álkálì

Àwọn mẹ́tàlì álkálì ni egbe kan lori tabili idasiko awon elimenti to ni awon elimenti lithium (Li), sodium (Na), potassium (K), rubidium (Rb), caesium (Cs),^{[note 1]} ati francium (Fr) ninu.^[4] Egbe yi wa ni inu s-block lori tabili idasiko^[5] nitoripe gbogbo awon metali alkali ni elektronu ode won ni inu s-orbital.^[6][7][8] Awon metali alkali ni apere ijora egbe bi awon ini lori tabili idasiko,^[6] pelu awon elimenti inu ti won unwuwa isejora.^[6]

Alkali metals in the periodic table
↓ Period
2	3 Li
3	11 Na
4	19 K
5	37 Rb
6	55 Cs
7	87 Fr
Legend Alkali metal Primordial From decay

Akiyesi

1. Caesium is the spelling recommended by the International Union of Pure and Applied Chemistry (IUPAC).^[1] The American Chemical Society (ACS) has used the spelling cesium since 1921,^[2][3] following Webster’s Third New International Dictionary.

Itokasi

1. Àdàkọ:RedBook2005.
2. Coghill, Anne M.; Garson, Lorrin R., eds (2006). The ACS Style Guide: Effective Communication of Scientific Information (3rd ed.). Washington, D.C.: American Chemical Society. p. 127. ISBN 0-8412-3999-1..
3. Coplen, T. B.; Peiser, H. S. (1998). "History of the recommended atomic-weight values from 1882 to 1997: a comparison of differences from current values to the estimated uncertainties of earlier values". Pure Appl. Chem. 70 (1): 237–257. doi:10.1351/pac199870010237. http://old.iupac.org/reports/1998/7001coplen/history.pdf..
4. Àdàkọ:RedBook2005.
5. Leach, Mark R. (1999–2012). "The Internet Database of Periodic Tables". meta-synthesis.com. Retrieved 20 May 2012.
7. "Periodic Table: Atomic Properties of the Elements" (PDF). nist.gov. National Institute of Standards and Technology. September 2010. Retrieved 17 February 2012.

Àdàkọ:Alkali metals