76 Os 오스뮴 190.23 u

오스뮴

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주기
6
8
블록
d-블록
상 (표준 상태)
Solid

오스뮴은 자연에 존재하는 가장 밀도가 높은 원소이다. 만년필 촉, 전기 접점, 현미경 염색제로 쓰인다.

오스뮴 개요

Denser than any other naturally occurring element, osmium (Os) is a hard, brittle, bluish-white member of the platinum group. Element 76 lies in group 8 of period 6 in the d-block, with an atomic mass of 190.23, the electron configuration [Xe] 4f¹⁴ 5d⁶ 6s², and a Pauling electronegativity of 2.2. Its extreme hardness led to historic use in the tips of fountain-pen nibs and in durable electrical contacts, while osmium tetroxide is a valuable staining agent in electron microscopy. The metal is solid at standard conditions and, though usually alloyed with other platinum-group metals, is prized wherever exceptional wear resistance is required.

물리적 성질

원자 질량 190.23 u
표준 상태에서의 상 Solid

전자적 성질

전기 음성도 2.2

전자 배치

배치 [Xe] 4f¹⁴ 5d⁶ 6s²

전자껍질 배치

오스뮴의 전자껍질 배치 Os 2e⁻ 8e⁻ 18e⁻ 32e⁻ 14e⁻ 2e⁻
오스뮴의 전자껍질 구조 — 껍질별 전자 수.
껍질 전자
1 (K) 2
2 (L) 8
3 (M) 18
4 (N) 32
5 (O) 14
6 (P) 2

주기율표에서의 위치

주기율표에서 오스뮴의 위치 Os

오스뮴을(를) 포함하는 화합물

Frequently Asked Questions

What is 오스뮴?
오스뮴 (Os) is a chemical element with atomic number 76. It is a solid at standard temperature and pressure, classified as a 전이 금속.
What are the key properties of 오스뮴?
오스뮴 has an atomic mass of 190.23 u.
What is the electron configuration of 오스뮴?
The electron configuration of 오스뮴 is [Xe] 4f14 5d6 6s2. It is in the d-block of the periodic table.
What is the electronegativity of 오스뮴?
오스뮴 has an electronegativity of 2.2 on the Pauling scale.