Periodic Table of Elements Glossary
Science / Periodic Table of Elements Glossary
Yttrium (Y): Atomic number: 39, Atomic mass: 88.9059 g.mol -1, Electronegativity: 1.2, Density: 4.47 g.cm-3 at 20°C, Melting point: 1500 °C, Boiling point: 3336 °C, Vanderwaals radius: 0.106 nm (+3), Iso . . . View Full Definition
Zinc (Zn): Atomic number: 30, Atomic mass: 65.37 g.mol -1, Electronegativity: 1.6, Density: 7.11 g.cm-3 at 20°C, Melting point: 420 °C, Boiling point: 907 °C, Vanderwaals radius: 0.138 nm, Ionic radius . . . View Full Definition
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 radi . . . View Full Definition
Word of the Day:
Creosote: A type of liquid coating made from coal tar that is used as a wood preservative. It should not be used on wood that will be painted later.

Synonym of the Day:
Thumping: Complete, Utter, Unmitigated, 24-carat, Perfectgreat, Huge, Colossal, Stupendous, Gigantic, Enormous, Immense, Monumental, Massive, Titanic, Elephanti . . . View All Synonyms

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