All New Trends by Catagiri

ELEMENTS - SOME INTERESTING FACTS - PART I

FIRST ELEMENTS OT BE NAMED AFTER REAL PEOPLE:-


1.SAMARIUM - Sm - Vasili Samarsky - Bykhovets ( Russia, 1803-70) 1879.



2.GADOLINIUM - Gd - Johan Gadolin (Finland, 1760-1852) 1880.






3.CURIUM - Cm - Pierre & Marie Curie (France 1859-1906; Poland 1867-1934) 1944.






4.EINSTEINUIM - Es - Albet Einstein (Germany, 1879-1955) 1952.





5.FERMIUM - Fm - Enrico Fermi (Italy, 1901-54) 1953.





6.NOBELIUM - No - Alfred Nobel (Sweden, 1833-96) 1958.





7.LAWRENCIUM - Lr - Ernest Lawrence (USA, 1901-58)1961.



8.RUTHERFORDIUM - Rf - Ernest Rutherford (UK, 1871-1937) 1969.




9.SEABORGIUM - Sg - Glenn T. Seaborg (USA, 1912-99) 1974.



10.BOHRIUM - Bh - Niels Bohr (Denmark, 1885- 62) 1981.










LIGHTEST ELEMENTS 

*- Grams per sq cm at 20* C

1. LITHIUM - 0.53*






2. POTASSIUM - 0.86*  




3. SODIUM - 0.97*  





4. RUBIDIUM - 1.53*  







5.CALCIUM - 1.55*   





6. MAGNESIUM - 1.74*






7. PHOSPHORUS - 1.83* 






8. BERYLLIUM - 1.84* 





9. CAESIUM - 1.90* 




10. SULPHUR - 2.07*







HEAVIEST ELEMENTS :-

*- Grams per sq cm at 20* C

1. OSMIUM - 22.59*




 2. IRIDIUM - 22.56*




  3. PLATINUM - 21.45*




  4. RHENIUM - 21.02*




  5. NEPTUNIUM - 20.45* 





 6. PLUTONIUM - 19.82*




  7. GOLD - 19.29*




  8. TUNGSTEN - 19.25*




  9. URANIUM - 19.05*

 


  10. TANTALUM - 16.67*