Science / Periodic Table of Elements / Californium (Cf): Atomic number: 98, Atomic mass: (251) g.mol -1, Electronegativity accordin to Pauling: unknown, Density: unknown, Melting point: unknown, Boiling point: unknown, Vanderwaals radius: unknown, Ionic rad MORE
Science / Geology / Fissure Vein: A cleft or crack in the rock material of the earth's crust, filled with mineral matter different from the walls and precipitated therin from aqueous solution. MORE
Science / Periodic Table of Elements / Titanium (Ti): Atomic number: 22, Atomic mass: 47.90 g.mol -1, Electronegativity: 1.5, Density: 4.51 g.cm-3 at 20?°C, Melting point: 1660 ?°C, Boiling point: 3287 ?°C, Vanderwaals radius: 0.147 nm, Ionic radius: MORE
Science / Periodic Table of Elements / Fermium (Fm): Atomic number: 100, Atomic mass: (257) g.mol -1, Electronegativity: unknown, Density: unknown, Melting point: unknown, Boiling point: unknown, Vanderwaals radius: unknown, Ionic radius: unknown, Isoto MORE
Science / Periodic Table of Elements / Fluorine (F): Atomic number: 9, Atomic mass: 18.998403 g.mol -1, Electronegativity: 4, Density: 1.8*10-3 g.cm-3 at 20?°C, Melting point: -219.6 ?°C, Boiling point: -188 ?°C, Vanderwaals radius: 0.135 nm, Ionic r MORE