1. 
   Hg
   abbreviation: mercury (liquid element)
   Found op http://www.apscharts.com/abbrev.html
   
   
2. 
   Hg
   Hg: Symbol for the metallic element mercury. The abbreviation 'mm Hg' means millimeters of mercury, the height of a column of mercury, as in a blood pressure reading. Mercury is poisonous to people. See Mercury poisoning.
   Found op http://www.medterms.com/script/main/art.html?articlekey=16166
   
   
3. 
   Hg
   Symbol for mercury (hydrargyrum). ... (05 Mar 2000) ...
   Found op http://www.mondofacto.com/facts/dictionary?Hg
   
   
4. 
   Hg
   mercury (L. hydrargy´rum).
   Found op http://www.encyclo.co.uk/local/21001
   
   
5. 
   Hg
   Atomic number: 80
   Element Symbol: Hg
   Element Name: Mercury
   Atomic Weight: 200,59
   Found op http://www.convertunits.com/element/Mercury
   
   
6. 
   Hg
   Mercury
   Found op http://www3.sympatico.ca/dhaughey/j1930.htm
   
   
7. 
   Hg
   Mercury
   Found op http://www.f-16.net/glossary-H.html
   
   
8. 
   Hg
   Type: Symbol Definitions: 1. Symbol for mercury (hydrargyrum).
   Found op http://www.medilexicon.com/medicaldictionary.php?t=40915
   
   
9. 
   Hg
   Hg, symbol for the element mercury.
   Found op http://www.infoplease.com/ce6/sci/A0823637.html
   
   
10. 
    hg
    High grade zinc. 99.5%. See also g.o.b. and shg.
    Found op http://www.metalbulletin.com/Glossary.html
    
    
11. 
    HG
    [disambiguation] Satellite image of central San Diego–Tijuana ...
    Found op http://en.wikipedia.org/wiki/HG_(disambiguation)
    
    
12. 
    hg
    1) Atomic number 80 2) Hg 3) Hydrargyrum 4) Mercury 5) Metal 6) Metallic element 7) Quicksilver
    Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/hg/1
    
    

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