Science / Periodic Table of Elements Glossary

Beryllium (Be): Atomic number: 4, Atomic mass: 9.01218 g.mol -1, Electronegativity: 1.5, Density: 1.86 g.cm-3, Melting point: 1280 °C, Boiling point: 2970 °C, Vanderwaals radius: unknown, Ionic radius: unkn . . . View Full Definition

Bismuth (Bi): Atomic number: 83, Atomic mass: 208.9804 g.mol -1, Electronegativity: 1.9, Density: 9.80 g.cm-3 at 20°C, Melting point: 271 °C, Boiling point: 1420 °C, Vanderwaals radius: 0.152 nm, Ionic ra . . . View Full Definition

Block: A region of the periodic table that corresponds to the type of subshell (s, p, d, or f) being filled during the Aufbau construction of electron configurations.

Bohrium (Bh): Atomic number: 107, Atomic mass: 262 g.mol -1, Electronegativity: unknown, Density: unknown, Melting point: unknown, Boiling point: unknown, Vanderwaals radius: unknown, Ionic radius: unknow . . . View Full Definition

Boron (B): Atomic number: 5, Atomic mass: 10.81 g.mol -1, Electronegativity: 2.0, Density: 2.3 g.cm-3 at 20°C, Melting point: 2076 °C, Boiling point: 3927 °C, Vanderwaals radius: 0.098 nm, Ionic radius . . . View Full Definition

Bromine (Br): Atomic number: 35, Atomic mass: 79.904 g.mol -1, Electronegativity: 2.8, Density: 3.1 g.cm-3 at 20°C, Melting point: - 7.2 °C, Boiling point: 58.8 °C, Vanderwaals radius: 0.165 nm, Ionic rad . . . View Full Definition

Cadmium (Cd): Atomic number: 48, Atomic mass: 112.4 g.mol -1, Electronegativity: 1.7, Density: 8.7 g.cm-3 at 20°C, Melting point: 321 °C, Boiling point: 767 °C, Vanderwaals radius: 0.154 nm, Ionic radius: . . . View Full Definition

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 ra . . . View Full Definition

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, . . . View Full Definition

Carbon (C): Atomic number: 6, Atomic mass: 12.011 g.mol -1, Electronegativity: 2.5, Density: 2.2 g.cm-3 at 20°C, Melting point: 3652 °C, Boiling point: 4827 °C, Vanderwaals radius: 0.091 nm, Ionic radiu . . . View Full Definition

Cerium (Ce): Atomic number: 58, Atomic mass: 140.12 g.mol -1, Electronegativity: 1.1, Density: 6.76 g.cm-3 at 20°C, Melting point: 799 °C, Boiling point: 3426 °C, Vanderwaals radius: 0.181 nm, Ionic radi . . . View Full Definition

Cesium (Cs): Atomic number: 55, Atomic mass: 132.9054 g.mol -1, Electronegativity: 0.7, Density: 1.9 g.cm-3 at 20°C, Melting point: 28.4 °C, Boiling point: 669 °C, Vanderwaals radius: 0.267 nm, Ionic rad . . . View Full Definition

Chlorine (Cl): Atomic number: 17, Atomic mass: 35.453 g.mol -1, Electronegativity: 3.0, Density: 3.21*10 -3 g.cm -3 at 20 °C, Melting point: -101 °C, Boiling point: -34.6 °C, Vanderwaals radius: 0.127 nm, . . . View Full Definition

Chromium (Cr): Atomic number: 24, Atomic mass: 51.996 g.mol -1, Electronegativity: 1.6, Density: 7.19 g.cm-3 at 20°C, Melting point: 1907 °C, Boiling point: 2672 °C, Vanderwaals radius: 0.127 nm, Ionic rad . . . View Full Definition

Cobalt (Co): Atomic number: 27, Atomic mass: 58.9332 g.mol -1, Electronegativity: 1.8, Density: 8.9 g.cm-3 at 20°C, Melting point: 1495 °C, Boiling point: 2927 °C, Vanderwaals radius: 0.125 nm, Ionic rad . . . View Full Definition

Congener: 1. Elements belonging to the same group on the periodic table. For example, sodium and potassium are congeners. 2. Compounds produced by identical synthesis reactions and procedures.

Copper (Cu): Atomic number: 29, Atomic mass: 63.546 g.mol -1, Electronegativity: 1.9, Density: 8.9 g.cm-3 at 20°C, Melting point: 1083 °C, Boiling point: 2595 °C, Vanderwaals radius: 0.128 nm, Ionic radi . . . View Full Definition

Curium (Cm): Atomic number: 96, Atomic mass: (247) g.mol -1, Electronegativity: unknown, Density: 13.51 g.cm-3 at 20°C, Melting point: 1340 °C, Boiling point: unknown, Vanderwaals radius: unknown, Ionic . . . View Full Definition

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