25 Mn Manganese 54,938 u

Manganese

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الدورة
4
المجموعة
7
الكتلة
d-كتلة
الطور (STP)
Solid

Manganese is a hard, brittle transition metal essential for steel production. It is also important in biological systems as a cofactor for many enzymes.

المظهر: Silvery metallic

الخصائص الفيزيائية

الكتلة الذرية 54.938 u
الكثافة 7.21 g/cm³
نقطة الانصهار 1245.8 °C
نقطة الغليان 2060.8 °C
الطور عند STP Solid
نصف القطر الذري 161.0 pm

الخصائص الإلكترونية

الكهروسالبية 1.55
طاقة التأين 717.3 eV
إلكترونات التكافؤ 7

التوزيع الإلكتروني

التهيئة [Ar] 3d⁵ 4s²

Electron Shell Configuration

Manganese electron shell configuration Mn 2e⁻ 8e⁻ 13e⁻ 2e⁻

Position in Periodic Table

Manganese position in the periodic table Mn

الاكتشاف

اكتشفه: Johan Gottlieb Gahn
السنة: 1774

Compounds Containing Manganese

المزيد من فلز انتقالي

Frequently Asked Questions

What is Manganese?
Manganese (Mn) is a chemical element with atomic number 25. It is a solid at standard temperature and pressure, classified as a فلز انتقالي.
What are the key properties of Manganese?
Manganese has an atomic mass of 54.938 u, density of 7.21 g/cm³, melting point of 1245.8°C, boiling point of 2060.8°C.
What is the electron configuration of Manganese?
The electron configuration of Manganese is [Ar] 3d5 4s2. It is in the d-block of the periodic table.
Who discovered Manganese?
Manganese was discovered by Johan Gottlieb Gahn in 1774.
What is the electronegativity of Manganese?
Manganese has an electronegativity of 1.55 on the Pauling scale.