serw-MX  [xml]  
 


    
 DeCS Categories

D01 Inorganic Chemicals .
D01.268 Elements .
D01.268.271 Elements, Radioactive .
D01.268.271.100 Actinoid Series Elements .
D01.268.271.100.033 Actinium .
D01.268.271.100.100 Berkelium .
D01.268.271.100.175 Curium .
D01.268.271.100.250 Einsteinium .
D01.268.271.100.500 Lawrencium .
D01.268.271.245 Bismuth .
D01.268.271.380 Francium .
D01.268.271.800 Radon .
D01.268.549 Metals, Alkali .
D01.268.549.250 Francium .
D01.268.549.750 Sodium .
D01.268.552 Metals, Alkaline Earth .
D01.268.552.850 Strontium .
D01.268.556 Metals, Heavy .
D01.268.556.025 Actinium .
D01.268.556.075 Berkelium .
D01.268.556.100 Bismuth .
D01.268.556.200 Curium .
D01.268.556.244 Einsteinium .
D01.268.556.277 Francium .
D01.268.556.423 Lawrencium .
D01.268.556.825 Strontium .
D01.268.557 Metals, Light .
D01.268.557.650 Sodium .
D01.268.613 Noble Gases .
D01.268.613.700 Radon .
D01.268.956 Transition Elements .
D01.268.956.295 Lawrencium .
D01.362 Gases .
D01.362.641 Noble Gases .
D01.362.641.745 Radon .
D01.496 Isotopes .
D01.496.749 Radioisotopes .
D01.496.749.305 Elements, Radioactive .
D01.496.749.305.100 Actinoid Series Elements .
D01.496.749.305.100.033 Actinium .
D01.496.749.305.100.100 Berkelium .
D01.496.749.305.100.175 Curium .
D01.496.749.305.100.250 Einsteinium .
D01.496.749.305.100.500 Lawrencium .
D01.496.749.305.245 Bismuth .
D01.496.749.305.380 Francium .
D01.496.749.305.800 Radon .
D01.552 Metals .
D01.552.020 Actinoid Series Elements .
D01.552.020.042 Actinium .
D01.552.020.150 Berkelium .
D01.552.020.272 Curium .
D01.552.020.337 Einsteinium .
D01.552.020.507 Lawrencium .
D01.552.528 Metals, Alkali .
D01.552.528.328 Francium .
D01.552.528.850 Sodium .
D01.552.539 Metals, Alkaline Earth .
D01.552.539.861 Strontium .
D01.552.544 Metals, Heavy .
D01.552.544.025 Actinium .
D01.552.544.075 Berkelium .
D01.552.544.100 Bismuth .
D01.552.544.200 Curium .
D01.552.544.244 Einsteinium .
D01.552.544.277 Francium .
D01.552.544.423 Lawrencium .
D01.552.544.825 Strontium .
D01.552.547 Metals, Light .
D01.552.547.725 Sodium .
SP4 Environmental Health .
SP4.011 Science .
SP4.011.097 Chemistry .
SP4.011.097.063 Elements .
SP4.011.097.063.889 Strontium .
SP4.011.097.063.984 Sodium .
SP4.041 Air 306 .
SP4.041.427 Air Pollution .
SP4.041.427.478 Radon .
 
 Terms
 Synonyms & Historicals
Documents
LILACS e MDL
 
Francium .
A radioactive alkali metal with the atomic symbol Fr, and atomic number 87. The mass numbers of known isotopes are 204-213, 217-224. Its valence is +1. .
1.00
09
 
Lawrencium .
A radioactive actinide discovered in 1961. It has the atomic symbol Lr, and atomic number 103. There are twelve isotopes with mass numbers 252­262 and 266. .
0.48
02
 
Einsteinium .
A man-made radioactive actinide with atomic symbol Es, and atomic number 99. Its known isotopes range in mass number from 240-258. Its valence can be +2 or +3. Einsteinium was originally discovered in the debris from a thermonuclear explosion in 1952. .
0.43
013
 
Berkelium .
A man-made radioactive actinide with atomic symbol Bk, atomic number 97, and atomic weight 247. Its valence can be +3 or +4. Twelve isotopes have been produced with mass numbers 240-251. .
0.42
011
 
Sodium .
Sodium Ion Level .
Sodium-23 .
Ion Level, Sodium .
Level, Sodium Ion .
Sodium 23 .
A member of the alkali group of metals. It has the atomic symbol Na, atomic number 11, and atomic weight 23. .
0.41
57593292
 
Bismuth .
A metallic element that has the atomic symbol Bi, and atomic number 83. Its principal isotope is Bismuth 209. .
0.41
904716
 
Strontium .
An element of the alkaline earth family of metals. It has the atomic symbol Sr, atomic number 38, and atomic weight 87.62. .
0.40
344446
 
Curium .
A radioactive actinide with atomic symbol Cm, and atomic number 96. Thirteen curium isotopes have been produced with mass numbers ranging from 238-250. Its valence can be +3 or +4. It is intensely radioactive and decays by alpha-emission. .
0.40
0161
 
Actinium .
A trivalent radioactive element and the prototypical member of the actinide family. It has the atomic symbol Ac, and atomic number 89. Its principal isotope is 227 and it decays primarily by beta-emission. .
0.38
0129
 
Radon .
Actinon .
Thoron (Element) .
A naturally radioactive element with atomic symbol Rn, and atomic number 86. It is a member of the noble gas family found in soil, and is released during the decay of RADIUM. .
0.38
84993