248 



METALS AND THEIR COMBINATIONS. 



Lead, Pb 



(Plumbum.) 



Lithium, Li 



Magnesium, Mg 



= 205.35. Both words signify something heavy. 



6.98. 

 24.18. 



Manganese, Mn = 54.6. 



198.5. 



Mercury, Hg 



(Hydrargyrum ) 



Molybdenum, Mo 



Nickel, Ni 



95.3. 



58.3. 



Platinum, Pt = 193.3. 



Potassium, K 38.86. 

 (Kalium.) 



Silver, Ag 



(Argentum.) 



Sodium, Na 



(Natrium.) 



107.12. 



22.88. 



Strontium, Sr = 86.94. 

 118.1. 

 64.9. 



Tin, Sn 



(Stannum.) 

 Zinc, Zn 



From the Greek Weiog (litheios), stony. 

 From Magnesia, a town in Asia Minor, where mag- 

 nesium carbonate was found as a mineral. 

 Probably from magnesium, with the compounds of 



which it was long confounded. 

 From Mercury, the messenger of the Greek gods. 



Hydrargyrum means liquid silver. 

 From the Greek n6"kvfi6og (molybdos), lead. 

 From the old German word nickel, which means 



worthless. 

 Platina is the diminutive of the Spanish word plata, 



silver. 

 From pot-ash ; potassium carbonate being the chief 



constituent of the lye of wood-ashes. Kali is the 



Arabic word for ashes. 

 Both words signify white. 



From soda-ash, or sod-ash, the ashes of marine plants 

 which are rich in sodium carbonate Natron is an 

 old name for natural deposits of sodium carbonate. 



From Strontian, a village in Scotland, where stron- 

 tium carbonate is found. 



Both words most likely signify stone. 



Most likely from the German zinn or tin, the metals 

 having been confounded with each other. 



Melting-points of metals. 



c. F. 



Fusible below the f Mercury 40 40 



boiling-point of -[ Potassium . . . -f 62 -f-144 



water, ^ Sodium 97 207 



f Lithium ..... 180 356 



I Tin 228 443 



Cadmium ...... 310 590 



Bismuth 260 500 



Lead 325 617 



Zinc 412 773 



Magnesium . . . .700 1292 



Antimony .... 425 797 



Aluminum . 700 1292 



Barium. 



Calcium. 



Strontium. 



Fusible below red 

 heat, 



Fusible 

 heat, 



at red 



