Chlorine (Cl) - 17 on the Periodic Table | Periodic Table

Standard IUPAC: Chlorine • Symbol: Cl • Atomic Mass: 35.45 u

Quick Factsheet: Chlorine (symbol Cl, atomic number 17) is element 17 on the periodic table of elements. It has a standard atomic weight of 35.45 u and an electron configuration of [Ne] 3s2 3p5. On the periodic table, Chlorine is classified in period 3 and group Main.

1. Periodic Table Position of Chlorine (17 on the Periodic Table)

Element Chlorine has atomic number Z = 17, meaning it contains 17 protons in its atomic nucleus and 17 electrons in its neutral state. On the standard periodic table of elements, Chlorine is located in period 3 and group Main.

2. Electron Configuration & Oxidation States (Chlorine Charges & Configuration)

Full Electron Configuration: [Ne] 3s2 3p5

Common Oxidation States (Charges): -1c,1c,2,3c,4,5c,6,7c

3. Physical Properties & Atomic Mass (Chlorine Atomic Mass)

Element Chlorine has a standard atomic weight of 35.45 u. Its melting point is 171.6 K and boiling point is 239.11 K. The Pauling electronegativity value is 3.16.

Comprehensive chemical properties and data for Chlorine (Cl, Z=17).

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

4. Related Elements in the Same Chemical Family

H (Z=1) C (Z=6) N (Z=7) O (Z=8) F (Z=9) P (Z=15)

5. Frequently Asked Questions about Chlorine (FAQ)

What is the chemical symbol and atomic number of Chlorine?

The chemical symbol of Chlorine is Cl and its atomic number is 17.

What is the atomic mass and electron configuration of Chlorine?

Chlorine has a standard atomic mass of 35.45 u and ground-state electron configuration of [Ne] 3s2 3p5.

What periodic table group and period does Chlorine belong to?

Chlorine is located in period 3 and group Main on the periodic table of elements.

← Previous Element: S (Z=16) Next Element: Ar (Z=18) →