33 As Arsenic 74,922 u

Arsenic

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Periyot
4
Grup
15
Blok
p-Blok
Faz (STP)
Solid

Arsenic is a metalloid known since antiquity, historically notorious as a poison. It is used in semiconductors and wood preservatives.

Görünüm: Metallic grey

Fiziksel Özellikler

Atom Kütlesi 74.922 u
Yoğunluk 5.727 g/cm³
Erime Noktası 816.9 °C
Kaynama Noktası 613.9 °C
STP'de Faz Solid
Atom Yarıçapı 114.0 pm

Elektronik Özellikler

Elektronegatiflik 2.18
İyonlaşma Enerjisi 947.0 eV
Elektron Afinitesi 78.2 eV
Değer Elektronları 5

Elektron Yapısı

Yapılandırma [Ar] 3d¹⁰ 4s² 4p³

Electron Shell Configuration

Arsenic electron shell configuration As 2e⁻ 8e⁻ 18e⁻ 5e⁻

Position in Periodic Table

Arsenic position in the periodic table As

Keşif

Keşfeden: Albertus Magnus
Yıl: 1250

Periyodik Tablo

Lantanitler Aktinitler

Compounds Containing Arsenic

Daha fazla Yarı Metal

Frequently Asked Questions

What is Arsenic?
Arsenic (As) is a chemical element with atomic number 33. It is a solid at standard temperature and pressure, classified as a yarı metal.
What are the key properties of Arsenic?
Arsenic has an atomic mass of 74.922 u, density of 5.727 g/cm³, melting point of 816.9°C, boiling point of 613.9°C.
What is the electron configuration of Arsenic?
The electron configuration of Arsenic is [Ar] 3d10 4s2 4p3. It is in the p-block of the periodic table.
Who discovered Arsenic?
Arsenic was discovered by Albertus Magnus in 1250.
What is the electronegativity of Arsenic?
Arsenic has an electronegativity of 2.18 on the Pauling scale.