24 Cr Chromium 51,996 u

Chromium

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الدورة
4
المجموعة
6
الكتلة
d-كتلة
الطور (STP)
Solid

Chromium is a hard, lustrous transition metal prized for its mirror finish. It is essential in stainless steel production and chrome plating.

المظهر: Silvery metallic

الخصائص الفيزيائية

الكتلة الذرية 51.996 u
الكثافة 7.15 g/cm³
نقطة الانصهار 1906.8 °C
نقطة الغليان 2670.8 °C
الطور عند STP Solid
نصف القطر الذري 166.0 pm

الخصائص الإلكترونية

الكهروسالبية 1.66
طاقة التأين 652.9 eV
ألفة الإلكترون 64.3 eV
إلكترونات التكافؤ 6

التوزيع الإلكتروني

التهيئة [Ar] 3d⁵ 4s¹

Electron Shell Configuration

Chromium electron shell configuration Cr 2e⁻ 8e⁻ 13e⁻ 1e⁻

Position in Periodic Table

Chromium position in the periodic table Cr

الاكتشاف

اكتشفه: Louis Nicolas Vauquelin
السنة: 1797

الكتلة والدورة

الكتلة

الدورة

الجدول الدوري

اللانثانيدات الأكتينيدات

Compounds Containing Chromium

المزيد من فلز انتقالي

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Frequently Asked Questions

What is Chromium?
Chromium (Cr) is a chemical element with atomic number 24. It is a solid at standard temperature and pressure, classified as a فلز انتقالي.
What are the key properties of Chromium?
Chromium has an atomic mass of 51.996 u, density of 7.15 g/cm³, melting point of 1906.8°C, boiling point of 2670.8°C.
What is the electron configuration of Chromium?
The electron configuration of Chromium is [Ar] 3d5 4s1. It is in the d-block of the periodic table.
Who discovered Chromium?
Chromium was discovered by Louis Nicolas Vauquelin in 1797.
What is the electronegativity of Chromium?
Chromium has an electronegativity of 1.66 on the Pauling scale.