Zirconium

Science / Geology / Zirconium: A mineral, zirconium silicate. A hard mineral with a high index of refraction that is used as a gemstone and as an ore of zirconium.

Zirconium (Zr)

Science / Periodic Table of Elements / Zirconium (Zr): Atomic number: 40, Atomic mass: 91.22 g.mol -1, Electronegativity: 1.2, Density: 6.49 g.cm-3 at 20°C, Melting point: 1852 °C, Boiling point: 4400 °C, Vanderwaals radius: 0.160 nm, Ionic radius: 0.0 MORE

Zirconium Lamp

Entertainment / Photography / Zirconium Lamp: Is an arc lamp used in powerful enlarges and projectors. MORE

Hafnium (Hf)

Science / Periodic Table of Elements / Hafnium (Hf): Atomic number: 72, Atomic mass: 178.49 g.mol -1, Electronegativity: 1.3, Density: 13.07 g.cm-3 at 20°C, Melting point: 2200 °C, Boiling point: 5200 °C, Vanderwaals radius: 0.161 nm, Ionic radius: 0 MORE

Calcium (Ca)

Science / Periodic Table of Elements / Calcium (Ca): Atomic number: 20, Atomic mass: 40.08 g.mol -1, Electronegativity: 1.0, Mass volume: 1.6 g.cm-3 at 20°C, Melting point: 840 °C, Boiling point: 1484 °C, Vanderwaals radius: 0.197 nm, Ionic radius: 0 MORE

Titanium (Ti)

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: 0.0 MORE

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