serw-MX  [xml]  
 


    
 DeCS Categories

D01 Inorganic Chemicals .
D01.268 Elements .
D01.268.185 Chalcogens .
D01.268.380 Halogens .
D01.268.549 Metals, Alkali .
D01.268.552 Metals, Alkaline Earth .
D01.268.613 Noble Gases .
D01.362 Gases .
D01.362.641 Noble Gases .
D01.552 Metals .
D01.552.528 Metals, Alkali .
D01.552.539 Metals, Alkaline Earth .
 
 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. .
0.67
4618
 
Halogens .
Group 17 Elements .
Elements, Group 17 .
A family of nonmetallic, generally electronegative, elements that form group 17 (formerly group VIIa) of the periodic table. .
0.64
282767
 
Noble Gases .
Group 18 Elements .
Elements, Group 18 .
Gases, Noble .
Inert Gases .
Gases, Inert .
Rare Gases .
Gases, Rare .
Elements that constitute group 18 (formerly the zero group) of the periodic table. They are gases that generally do not react chemically. .
0.63
2653
 
Chalcogens .
Group 16 Elements .
Elements, Group 16 .
The elements OXYGEN; POLONIUM; SELENIUM; SULFUR; and TELLURIUM; that form group 16 (formerly group VI) of the periodic table. .
0.63
0344