Potassium (K) - 19 on the Periodic Table | Periodic Table

Standard IUPAC: Potassium • Symbol: K • Atomic Mass: 39.0983 u

Quick Factsheet: Potassium (symbol K, atomic number 19) is element 19 on the periodic table of elements. It has a standard atomic weight of 39.0983 u and an electron configuration of [Ar] 4s1. On the periodic table, Potassium is classified in period 4 and group Main.

1. Periodic Table Position of Potassium (19 on the Periodic Table)

Element Potassium has atomic number Z = 19, meaning it contains 19 protons in its atomic nucleus and 19 electrons in its neutral state. On the standard periodic table of elements, Potassium is located in period 4 and group Main.

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

Full Electron Configuration: [Ar] 4s1

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

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

Element Potassium has a standard atomic weight of 39.0983 u. Its melting point is 336.53 K and boiling point is 1032. K. The Pauling electronegativity value is 0.82.

Comprehensive chemical properties and data for Potassium (K, Z=19).

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) Rb (Z=37) Cs (Z=55) Fr (Z=87)

5. Frequently Asked Questions about Potassium (FAQ)

What is the chemical symbol and atomic number of Potassium?

The chemical symbol of Potassium is K and its atomic number is 19.

What is the atomic mass and electron configuration of Potassium?

Potassium has a standard atomic mass of 39.0983 u and ground-state electron configuration of [Ar] 4s1.

What periodic table group and period does Potassium belong to?

Potassium is located in period 4 and group Main on the periodic table of elements.

← Previous Element: Ar (Z=18) Next Element: Ca (Z=20) →