75 Re 레늄 186.21 u

레늄

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주기
6
7
블록
d-블록
상 (표준 상태)
Solid

레늄은 지각에서 가장 희귀한 원소 가운데 하나이다. 제트 엔진 초합금과 석유 정제 촉매에 쓰인다.

레늄 개요

Rhenium (Re) is one of the rarest elements in Earth's crust and among the densest, a heat-resistant transition metal in group 7 of period 6, the d-block. It has an atomic mass of 186.21, the electron configuration [Xe] 4f¹⁴ 5d⁵ 6s², and a Pauling electronegativity of 1.9. Its very high melting point suits it to the nickel-based superalloys of jet-engine turbine blades, where small additions markedly improve high-temperature strength. Rhenium also serves as a catalyst in petroleum refining, notably for producing high-octane gasoline. Solid at standard conditions, it can adopt a wide range of oxidation states.

물리적 성질

원자 질량 186.21 u
표준 상태에서의 상 Solid

전자적 성질

전기 음성도 1.9

전자 배치

배치 [Xe] 4f¹⁴ 5d⁵ 6s²

전자껍질 배치

레늄의 전자껍질 배치 Re 2e⁻ 8e⁻ 18e⁻ 32e⁻ 13e⁻ 2e⁻
레늄의 전자껍질 구조 — 껍질별 전자 수.
껍질 전자
1 (K) 2
2 (L) 8
3 (M) 18
4 (N) 32
5 (O) 13
6 (P) 2

주기율표에서의 위치

주기율표에서 레늄의 위치 Re

Frequently Asked Questions

What is 레늄?
레늄 (Re) is a chemical element with atomic number 75. It is a solid at standard temperature and pressure, classified as a 전이 금속.
What are the key properties of 레늄?
레늄 has an atomic mass of 186.21 u.
What is the electron configuration of 레늄?
The electron configuration of 레늄 is [Xe] 4f14 5d5 6s2. It is in the d-block of the periodic table.
What is the electronegativity of 레늄?
레늄 has an electronegativity of 1.9 on the Pauling scale.