Science / Chemistry / Electronegativity: Electronegativity is a measure of the attraction an atom has for bonding electrons. Bonds between atoms with different electronegativities are polar, with the bonding electrons spending more time on average around the atom with higher electronegativity.
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Science / Periodic Table of Elements / Rhenium (Re): Atomic number: 75, Atomic mass: 186.23 g.mol -1, Electronegativity: 1.9, Density: 20.5 g.cm-3 at 20?°C, Melting point: 3170 ?°C, Boiling point: 5627 ?°C, Vanderwaals radius: 0.138 nm, Ionic radius: MORE
Science / Periodic Table of Elements / Rhodium (Rh): Atomic number: 45, Atomic mass: 102.91 g.mol -1, Electronegativity: 2.2, Density: 12.4 g.cm-3 at 20?°C, Melting point: 1970 ?°C, Boiling point: 3727 ?°C, Isotopes: 9, Electronic shell: [ Kr ] 4d8 5 MORE
Science / Periodic Table of Elements / Nitrogen (N): Atomic number: 7, Atomic mass: 14.0067 g.mol -1, Electronegativity: 3.0, Density: 1.25*10-3 g.cm-3 at 20?°C, Melting point: -210 ?°C, Boiling point: -195.8 ?°C, Vanderwaals radius: 0.092 nm, Ionic MORE
Science / Periodic Table of Elements / Niobium (Nb): Atomic number: 41, Atomic mass: 92.91 g.mol -1, Electronegativity: unknown, Density: 8.4 g.cm-3 at 20?°C, Melting point: 2410 ?°C, Boiling point: 5100 ?°C, Vanderwaals radius: 0.143 nm, Ionic radiu MORE
Science / Periodic Table of Elements / Lithium (Li): Atomic number: 3, Atomic mass: 6.941 g.mol -1, Electronegativity: 1.0, Density: 0.53 g.cm -3 at 20 ?°C, Melting point: 180.5 ?°C, Boiling point: 1342 ?°C, Vanderwaals radius: 0.145 nm, Ionic radius MORE
Science / Periodic Table of Elements / Mercury (Hg): Atomic number: 80, Atomic mass: 200.59 g.mol -1, Electronegativity: 1.9, Density: 13.6 g.cm-3 at 20?°C, Melting point: - 38.9 ?°C, Boiling point: 356.6 ?°C, Vanderwaals radius: 0.157 nm, Ionic radi MORE