77 Ir 이리듐 192.22 u

이리듐

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주기
6
9
블록
d-블록
상 (표준 상태)
Solid

이리듐은 알려진 금속 가운데 내식성이 가장 뛰어나다. 점화 플러그, 도가니, 국제 킬로그램 원기에 쓰였다.

이리듐 개요

Iridium (Ir) is the most corrosion-resistant metal known, resisting acids and remaining stable at high temperatures. Element 77 occupies group 9 of period 6 in the d-block, with an atomic mass of 192.22, the electron configuration [Xe] 4f¹⁴ 5d⁷ 6s², and a Pauling electronegativity of 2.2. This durability suits it to hard-wearing applications such as long-life spark-plug electrodes and crucibles for growing high-purity crystals. Iridium historically defined the standard for permanence: the international prototype kilogram was a platinum-iridium alloy. A dense, hard, silvery member of the platinum group, it is solid at standard conditions.

물리적 성질

원자 질량 192.22 u
표준 상태에서의 상 Solid

전자적 성질

전기 음성도 2.2

전자 배치

배치 [Xe] 4f¹⁴ 5d⁷ 6s²

전자껍질 배치

이리듐의 전자껍질 배치 Ir 2e⁻ 8e⁻ 18e⁻ 32e⁻ 15e⁻ 2e⁻
이리듐의 전자껍질 구조 — 껍질별 전자 수.
껍질 전자
1 (K) 2
2 (L) 8
3 (M) 18
4 (N) 32
5 (O) 15
6 (P) 2

주기율표에서의 위치

주기율표에서 이리듐의 위치 Ir

Frequently Asked Questions

What is 이리듐?
이리듐 (Ir) is a chemical element with atomic number 77. It is a solid at standard temperature and pressure, classified as a 전이 금속.
What are the key properties of 이리듐?
이리듐 has an atomic mass of 192.22 u.
What is the electron configuration of 이리듐?
The electron configuration of 이리듐 is [Xe] 4f14 5d7 6s2. It is in the d-block of the periodic table.
What is the electronegativity of 이리듐?
이리듐 has an electronegativity of 2.2 on the Pauling scale.