Science / Chemistry / Adsorbent: A substance that collects molecules of another substance on its surface. For example, gases that make water taste bad are strongly adsorbed on activated charcoal granules in water filters. MORE
Science / Periodic Table of Elements / Europium (Eu): Atomic number: 63, Atomic mass: 167.26 g.mol -1, Electronegativity: 1.2, Density: 9.2 g.cm-3 at 20?°C, Melting point: 1522 ?°C, Boiling point: 2510 ?°C, Vanderwaals radius: unknown, Ionic radius: u MORE
Science / Periodic Table of Elements / Neodymium (Nd): Atomic number: 60, Atomic mass: 144.2 g mol -1, Electronegativity: 1.14, Density: 7.0 g cm-3, Melting point: 1024 ?°C, Boiling point: 3074 ?°C, Vanderwaals radius: 0.181 nm, Isotopes: 9, Electronic MORE
Science / Periodic Table of Elements / Potassium (K): Atomic number: 19, Atomic mass: 39.0983 g.mol -1, Electronegativity: 0.8, Density: 0.86 g.cm -3 at 0 ?°C, Melting point: 63.2 ?°C, Boiling point: 760 ?°C, Vanderwaals radius: 0.235 nm, Ionic radius MORE
Science / Periodic Table of Elements / Samarium (Sm): Atomic number: 62 Atomic mass: 150.35 g.mol -1 Electronegativity: 1.2 Density: 6.9 g.cm-3 at 20?°C Melting point: 1072 ?°C Boiling point: 1790 ?°C Vanderwaals radius: unknown Ionic radius: unknown MORE
Science / Periodic Table of Elements / Nickel (Ni): Atomic number: 28, Atomic mass: 58.71 g.mol -1, Electronegativity: 1.8, Density: 8.9 g.cm-3 at 20?°C, Melting point: 1453 ?°C, Boiling point: 2913 ?°C, Vanderwaals radius: 0.124 nm, Ionic radius: 0 MORE