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*
