19 K Potassium 39,098 u

Potassium

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Periode
4
Golongan
1
Blok
s-blok
Fase (STP)
Solid

Potassium is an essential alkali metal for all living cells. It is the seventh most abundant element in Earth's crust.

Penampilan: Silvery-gray

Sifat Fisika

Massa Atom 39.098 u
Kerapatan 0.862 g/cm³
Titik Lebur 63.6 °C
Titik Didih 758.9 °C
Fase pada STP Solid
Jari-jari Atom 243.0 pm

Sifat Elektronik

Keelektronegatifan 0.82
Energi Ionisasi 418.8 eV
Afinitas Elektron 48.4 eV
Elektron Valensi 1

Konfigurasi Elektron

Konfigurasi [Ar] 4s¹

Electron Shell Configuration

Potassium electron shell configuration K 2e⁻ 8e⁻ 8e⁻ 1e⁻

Position in Periodic Table

Potassium position in the periodic table K

Penemuan

Ditemukan oleh: Humphry Davy
Tahun: 1807

Compounds Containing Potassium

Lebih banyak Logam Alkali

Frequently Asked Questions

What is Potassium?
Potassium (K) is a chemical element with atomic number 19. It is a solid at standard temperature and pressure, classified as a logam alkali.
What are the key properties of Potassium?
Potassium has an atomic mass of 39.098 u, density of 0.862 g/cm³, melting point of 63.6°C, boiling point of 758.9°C.
What is the electron configuration of Potassium?
The electron configuration of Potassium is [Ar] 4s1. It is in the s-block of the periodic table.
Who discovered Potassium?
Potassium was discovered by Humphry Davy in 1807.
What is the electronegativity of Potassium?
Potassium has an electronegativity of 0.82 on the Pauling scale.