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Periodic Table

Matthew Kennedy

1 2 3 4
5         6              
       
  7   8       9    
10                    
       
  11   12          
13                  
        14
15     16               17  
      18        
19                      
    20                
  21        
22               23              
       
      24       25      
    26  
   
27            
  28          
29            
 

Across
5.A ductile, malleable, silver-white metallic element, scarcely known in a pure condition,
6.A colorless, odorless, flammable gas that combines chemically with oxygen to form water: the lightest of the known elements
8.A nonmetallic element, having amorphous and crystalline forms
10.A hard, brittle, grayish-white, metallic element
12.A silver-white metallic element with a faint pinkish tinge
13.A steel-gray, bivalent, hard, light, metallic element,
15.A silvery-white metallic element that oxidizes rapidly in the air and whose compounds are used as fertilizer and in special hard glasses.
18.A ductile, bluish-white metallic element: used in making galvanized iron, brass, and other alloys, and as an element in voltaic cells.
19.A lustrous, hard, brittle, metallic element used in alloy steels for hardness and corrosion resistance, as in stainless steel, and for plating other metals
20.A colorless, odorless, gaseous element that constitutes about four-fifths of the volume of the atmosphere and is present in combined form in animal and vegetable tissues, especially in proteins
22.A halogen element, a heavy, greenish-yellow, incombustible, water-soluble, poisonous gas that is highly irritating to the respiratory organs, used in pools in spas
23.A rare element occurring in certain minerals and obtained as a light-gray powder with a silvery luster or as a ductile metal: used as an ingredient of steel to toughen it and increase its shock resistance.
24.A dark-gray or silvery, lustrous, very hard, light, corrosion-resistant, metallic element
27.A nonmetallic element that exists in several forms, the ordinary one being a yellow rhombic crystalline solid, and that burns with a blue flame and a suffocating odor
28.What we breath in everyday of our lives.
29.A soft, silver-white, metallic element that oxidizes rapidly in moist air
Down
1.A colorless, odorless, chemically inactive, monatomic, gaseous element that, because of its inertness, is used for filling fluorescent and incandescent lamps and vacuum tubes.
2.A malleable, ductile, metallic element having a characteristic reddish-brown color: used in large quantities as an electrical conductor and in the manufacture of alloys,
3.A solid, nonmetallic element existing in at least three allotropic forms, one that is yellow, poisonous, flammable, and luminous in the dark
4.A chemically inert gaseous element occurring in small amounts in the earth's atmosphere, used chiefly in a type of electrical lamp.
7.A light, ductile, silver-white, metallic element that burns with a dazzling white light, used in lightweight alloys, flares, fireworks
9.A widely distributed element that forms organic compounds in combination with hydrogen, oxygen, etc., and that occurs in a pure state as diamond and graphite, and in an impure state as charcoal
11.A white, crystalline, water-insoluble solid, used chiefly in the manufacture of resins and dyes.
14.A soft, silver-white metallic element, the lightest of all metals
16.A silver-white metallic element, light in weight, ductile, malleable, and not readily corroded or tarnished
17.A rare, trivalent, metallic element obtained from thortveitite
19.A silver-white divalent metal, occurring combined in limestone, chalk, gypsum, etc.,
21.A nonmetallic element occurring naturally only in combination
25.A hard, silvery-white, ductile and malleable metallic element, allied to iron and cobalt, not readily oxidized: used chiefly in alloys, in electroplating, and as a catalyst in organic synthesis
26.An inert, gaseous element present in the sun's atmosphere and in natural gas

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