serw-MX  [xml]  
 


    
 DeCS Categories

D01 Inorganic Chemicals .
D01.045 Alkalies .
D01.268 Elements .
D01.268.549 Metals, Alkali .
D01.268.552 Metals, Alkaline Earth .
D01.268.558 Metals, Rare Earth .
D01.552 Metals .
D01.552.528 Metals, Alkali .
D01.552.539 Metals, Alkaline Earth .
D01.552.550 Metals, Rare Earth .
SP4 Environmental Health .
SP4.011 Science .
SP4.011.097 Chemistry .
SP4.011.097.105  .
SP4.011.097.105.074 Alkalinization .
SP4.011.097.105.074.600 Alkalizers .
 
 Terms
 Synonyms & Historicals
Documents
LILACS e MDL
 
Metals, Alkaline Earth .
Group 2 Elements .
Earth Metals, Alkaline .
Elements, Group 2 .
Alkaline Earth Metals .
Metals that constitute the group 2 (formerly group IIa) of the periodic table. .
1.00
3392
 
Metals, Alkali .
Group 1 Elements .
Elements, Group 1 .
Alkali Metals .
Metals that constitute group 1(formerly group Ia) of the periodic table. They are the most strongly electropositive of the metals. Note that HYDROGEN is not considered an alkali metal even though it falls under the group 1 heading in the periodic table. .
0.80
4618
 
Alkalizers .
Alkaligenes .
Alkalizer .
Alkalines .
0.62
40
 
Alkalies .
Alkalis .
Alkali .
Bases .
Alkaline Substances .
Basic Substances .
Usually a hydroxide of lithium, sodium, potassium, rubidium or cesium, but also the carbonates of these metals, ammonia, and the amines. (Grant & Hackh's Chemical Dictionary, 5th ed) .
0.60
274475
 
Metals, Rare Earth .
Earth Metals, Rare .
Rare Earth Metals .
A group of elements that include SCANDIUM; YTTRIUM; and the LANTHANOID SERIES ELEMENTS. Historically, the rare earth metals got their name from the fact that they were never found in their pure elemental form, but as an oxide. In addition they were very difficult to purify. They are not truly rare and comprise about 25% of the metals in the earth's crust. .
0.55
31571