45 Rh 로듐 102.91 u

로듐

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주기
5
족
9
블록
d-블록
상 (표준 상태)
Solid

로듐은 가장 희귀하고 값비싼 귀금속이다. 촉매 변환기, 장신구, 화학 촉매로 쓰인다.

로듐 개요

The rarest and most valuable of the precious metals, rhodium (Rh) commands prices well above gold and platinum. Element 45 occupies group 9 of period 5 in the d-block, with an atomic mass of 102.91, the electron configuration [Kr] 4d⁸ 5s¹, and a comparatively high electronegativity of 2.28. Its foremost application is in automotive catalytic converters, where it helps reduce nitrogen-oxide emissions, but it also serves as a reflective, tarnish-resistant plating for jewelry and as a catalyst in industrial chemistry. Rhodium is a hard, silvery member of the platinum group, solid at standard temperature and pressure and exceptionally resistant to corrosion.

물리적 성질

원자 질량 102.91 u
표준 상태에서의 상 Solid

전자적 성질

전기 음성도 2.28

전자 배치

배치 [Kr] 4d⁸ 5s¹

전자껍질 배치

로듐의 전자껍질 배치 Rh 2e⁻ 8e⁻ 18e⁻ 16e⁻ 1e⁻
로듐의 전자껍질 구조 — 껍질별 전자 수.
껍질 전자
1 (K) 2
2 (L) 8
3 (M) 18
4 (N) 16
5 (O) 1

주기율표에서의 위치

주기율표에서 로듐의 위치 Rh

블록 & 주기

블록

s p d f

주기

1 2 3 4 5 6 7

주기율표

란타넘족 악티늄족

로듐을(를) 포함하는 화합물

염화로듐(III)

RhCl₃

더 많은 전이 금속

21 Sc 스칸듐 22 Ti 타이타늄 23 V 바나듐 24 Cr 크로뮴 25 Mn 망가니즈 26 Fe 철 27 Co 코발트 28 Ni 니켈 29 Cu 구리 30 Zn 아연

Frequently Asked Questions

What is 로듐?
로듐 (Rh) is a chemical element with atomic number 45. It is a solid at standard temperature and pressure, classified as a 전이 금속.
What are the key properties of 로듐?
로듐 has an atomic mass of 102.91 u.
What is the electron configuration of 로듐?
The electron configuration of 로듐 is [Kr] 4d8 5s1. It is in the d-block of the periodic table.
What is the electronegativity of 로듐?
로듐 has an electronegativity of 2.28 on the Pauling scale.