18 Ar Argon 39,948 u

Argon

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Periyot
3
Grup
18
Blok
p-Blok
Faz (STP)
Gas

Argon is the third most abundant gas in Earth's atmosphere at 0.93%. It is used as an inert shielding gas in welding and lighting.

Görünüm: Colorless gas

Fiziksel Özellikler

Atom Kütlesi 39.948 u
Yoğunluk 0.0017837 g/cm³
Erime Noktası -189.3 °C
Kaynama Noktası -185.8 °C
STP'de Faz Gas
Atom Yarıçapı 71.0 pm

Elektronik Özellikler

İyonlaşma Enerjisi 1520.6 eV
Değer Elektronları 8

Elektron Yapısı

Yapılandırma [Ne] 3s² 3p⁶

Electron Shell Configuration

Argon electron shell configuration Ar 2e⁻ 8e⁻ 8e⁻

Position in Periodic Table

Argon position in the periodic table Ar

Keşif

Keşfeden: Lord Rayleigh
Yıl: 1894

Periyodik Tablo

Lantanitler Aktinitler

Daha fazla Soy Gaz

Frequently Asked Questions

What is Argon?
Argon (Ar) is a chemical element with atomic number 18. It is a gas at standard temperature and pressure, classified as a soy gaz.
What are the key properties of Argon?
Argon has an atomic mass of 39.948 u, density of 0.0017837 g/cm³, melting point of -189.3°C, boiling point of -185.8°C.
What is the electron configuration of Argon?
The electron configuration of Argon is [Ne] 3s2 3p6. It is in the p-block of the periodic table.
Who discovered Argon?
Argon was discovered by Lord Rayleigh in 1894.