5 B Boron 10.81 u

Boron

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आवर्त
2
समूह
13
ब्लॉक
p-ब्लॉक
अवस्था (STP)
Solid

Boron is a metalloid essential for plant growth and used in glass and ceramics. Its compounds, such as borax, have been used for thousands of years.

दिखावट: Black-brown

भौतिक गुण

परमाणु द्रव्यमान 10.81 u
घनत्व 2.34 g/cm³
गलनांक 2075.8 °C
क्वथनांक 3926.8 °C
STP पर अवस्था Solid
परमाणु त्रिज्या 87.0 pm

इलेक्ट्रॉनिक गुण

विद्युतऋणात्मकता 2.04
आयनीकरण ऊर्जा 800.6 eV
इलेक्ट्रॉन आत्मीयता 26.7 eV
संयोजकता इलेक्ट्रॉन 3

इलेक्ट्रॉन विन्यास

विन्यास [He] 2s² 2p¹

Electron Shell Configuration

Boron electron shell configuration B 2e⁻ 3e⁻

Position in Periodic Table

Boron position in the periodic table B

खोज

द्वारा खोजा गया: Joseph Louis Gay-Lussac
वर्ष: 1808

ब्लॉक और आवर्त

ब्लॉक

आवर्त

आवर्त सारणी

लैंथेनाइड एक्टिनाइड

Compounds Containing Boron

उपधातु में और

Frequently Asked Questions

What is Boron?
Boron (B) is a chemical element with atomic number 5. It is a solid at standard temperature and pressure, classified as a उपधातु.
What are the key properties of Boron?
Boron has an atomic mass of 10.81 u, density of 2.34 g/cm³, melting point of 2075.8°C, boiling point of 3926.8°C.
What is the electron configuration of Boron?
The electron configuration of Boron is [He] 2s2 2p1. It is in the p-block of the periodic table.
Who discovered Boron?
Boron was discovered by Joseph Louis Gay-Lussac in 1808.
What is the electronegativity of Boron?
Boron has an electronegativity of 2.04 on the Pauling scale.