45 Rh 로듐 102.91 u

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

로듐을(를) 포함하는 화합물

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.