25 Mn 망가니즈 54.938 u

망가니즈

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주기
4
7
블록
d-블록
상 (표준 상태)
Solid

망가니즈는 강철 제조에 필수적인 단단하고 잘 부서지는 전이 금속이다. 여러 효소의 보조 인자로서 생물학적으로도 중요하다.

외관: 은색 금속

망가니즈 개요

Hard and brittle, manganese is a silvery transition metal that is essential to steelmaking, where it improves strength during production. It has atomic number 25 and an atomic mass of 54.938, a density of 7.21 g/cm³, and a melting point of 1519 K. Its half-filled d subshell in the [Ar] 3d5 4s2 configuration gives an electronegativity of 1.55 and a first ionization energy of 717 kJ/mol. Johan Gottlieb Gahn first isolated the metal in 1774. Beyond metallurgy, manganese is important in biology as a cofactor for many enzymes. It belongs to group 7, period 4.

물리적 성질

원자 질량 54.938 u
밀도 7.21 g/cm³
녹는점 1245.8 °C
끓는점 2060.8 °C
표준 상태에서의 상 Solid
원자 반지름 161.0 pm

전자적 성질

전기 음성도 1.55
이온화 에너지 717.3 eV
원자가 전자 7

전자 배치

배치 [Ar] 3d⁵ 4s²

전자껍질 배치

망가니즈의 전자껍질 배치 Mn 2e⁻ 8e⁻ 13e⁻ 2e⁻
망가니즈의 전자껍질 구조 — 껍질별 전자 수.
껍질 전자
1 (K) 2
2 (L) 8
3 (M) 13
4 (N) 2

주기율표에서의 위치

주기율표에서 망가니즈의 위치 Mn

발견

발견자: Johan Gottlieb Gahn
연도: 1774

망가니즈을(를) 포함하는 화합물

Frequently Asked Questions

What is 망가니즈?
망가니즈 (Mn) is a chemical element with atomic number 25. It is a solid at standard temperature and pressure, classified as a 전이 금속.
What are the key properties of 망가니즈?
망가니즈 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 망가니즈?
The electron configuration of 망가니즈 is [Ar] 3d5 4s2. It is in the d-block of the periodic table.
Who discovered 망가니즈?
망가니즈 was discovered by Johan Gottlieb Gahn in 1774.
What is the electronegativity of 망가니즈?
망가니즈 has an electronegativity of 1.55 on the Pauling scale.