19 K Potassium 39.098 u

Potassium

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आवर्त
4
समूह
1
ब्लॉक
s-ब्लॉक
अवस्था (STP)
Solid

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

दिखावट: Silvery-gray

भौतिक गुण

परमाणु द्रव्यमान 39.098 u
घनत्व 0.862 g/cm³
गलनांक 63.6 °C
क्वथनांक 758.9 °C
STP पर अवस्था Solid
परमाणु त्रिज्या 243.0 pm

इलेक्ट्रॉनिक गुण

विद्युतऋणात्मकता 0.82
आयनीकरण ऊर्जा 418.8 eV
इलेक्ट्रॉन आत्मीयता 48.4 eV
संयोजकता इलेक्ट्रॉन 1

इलेक्ट्रॉन विन्यास

विन्यास [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

खोज

द्वारा खोजा गया: Humphry Davy
वर्ष: 1807

Compounds Containing Potassium

क्षार धातु में और

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 क्षार धातु.
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.