A substance that dissolves in water to give hydroxide ions. A generic name for → bases.
M.E. alkaly, from M.fr. alcali, M.L. alkali, from Ar.
Qalyâ, loan from Ar., as above.
Fr.: raie alcaline
A spectral line produced by an → alkali metal.
felez-e qalyâyi (#)
Fr.: métal alcalin
Any of the chemical elements belonging to group A of the → periodic table, which burn vigorously in air; i.e. → lithium, → sodium, → potassium, → rubidium, → cesium, and → francium. Alkali metals have a → valence of one and are softer and less dense than other metals.
From alkal(i) + -ine a suffix denoting "of or pertaining to," "of the nature of," "like."
From qalyâ, → alkali, + -yi adj. suffix.
alkaline earth metal
felez-e qalyâyi-ye xâki (#)
Fr.: terre alcaline
Any of the metallic chemical elements belonging to group 2 of the → periodic table; i.e. → beryllium, → magnesium, → calcium, → strontium, → barium, and → radium. They are not found free in the nature because they are highly reactive.