セシウム (Cs) - 55 on the Periodic Table | 周期表

Standard IUPAC: セシウム • Symbol: Cs • Atomic Mass: 132.90545196 u

クイックファクトシート: セシウム (symbol Cs, atomic number 55) is element 55 on the periodic table of elements. It has a standard atomic weight of 132.90545196 u and an electron configuration of [Xe] 6s1. On the periodic table, セシウム is classified in period 6 and group Main.

1. Periodic Table Position of セシウム (55 on the Periodic Table)

Element セシウム has atomic number Z = 55, meaning it contains 55 protons in its atomic nucleus and 55 electrons in its neutral state. On the standard periodic table of elements, セシウム is located in period 6 and group Main.

2. Electron Configuration & Oxidation States (セシウム Charges & Configuration)

Full Electron Configuration: [Xe] 6s1

Common Oxidation States (Charges): -1,1c

3. Physical Properties & Atomic Mass (セシウム Atomic Mass)

Element セシウム has a standard atomic weight of 132.90545196 u. Its melting point is 301.59 K and boiling point is 944. K. The Pauling electronegativity value is 0.79.

Comprehensive chemical properties and data for Caesium (Cs, Z=55).

Explore interactive 3D electron orbitals, isotopes, and properties on the periodic table: Open on Interactive Table 🚀

4. Related Elements in the Same Chemical Family

Li (Z=3) Na (Z=11) K (Z=19) Rb (Z=37) Fr (Z=87)

5. Frequently Asked Questions about セシウム (FAQ)

What is the chemical symbol and atomic number of セシウム?

The chemical symbol of セシウム is Cs and its atomic number is 55.

What is the atomic mass and electron configuration of セシウム?

セシウム has a standard atomic mass of 132.90545196 u and ground-state electron configuration of [Xe] 6s1.

What periodic table group and period does セシウム belong to?

セシウム is located in period 6 and group Main on the periodic table of elements.

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