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Group 1 elements

Group 1 of the periodic table contains these elements: Hydrogen, Lithium, Sodium, Potassium, Rubidium, Cesium, Francium.

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Period: 1 2 3 4 5 6 7
Group: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
Block: S P D F
Phase: Solid Liquid Gas

List of chemical elements (7)

Chemical elements
No. Symbol Element Atomic weight (u) Density (g/cm³) Melting point (K) Boiling point (K) Electronegativity Discovered
1HHydrogen1.00790.0898813.9920.2712.21766
3LiLithium6.9380.534453.6516030.981817
11NaSodium22.98980.968370.9441156.090.931807
19KPotassium39.09830.862336.710320.821807
37RbRubidium85.46781.532312.459610.821861
55CsCesium132.9051.93301.79440.791860
87FrFrancium2231.873009500.791939