Cs

    Cesium

    Alkali Metal

    Atomic Number: 55 • Atomic Mass: 132.9100 u • Period: 6 • Group: 1

    Electron Configuration: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s¹
    Phase: Solid
    Electronegativity: 0.79

    Applications

    Cesium has a wide range of applications in various industries, including:

    • Atomic clocks
    • Oil drilling
    • Photoelectric cells