45 Rh Rhodium 102.91 u

Rhodium

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周期
5
族
9
ブロック
d-ブロック
相 (STP)
Solid

Rhodium is the rarest and most valuable precious metal. It is used in catalytic converters, jewelry, and as a catalyst.

About Rhodium

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.

物理的特性

原子質量 102.91 u
STPにおける相 Solid

電子的特性

電気陰性度 2.28

電子配置

配置 [Kr] 4d⁸ 5s¹

Electron Shell Configuration

Rhodium electron shell configuration Rh 2e⁻ 8e⁻ 18e⁻ 16e⁻ 1e⁻
Electron shell structure of Rhodium — electrons per shell.
Shell Electrons
1 (K) 2
2 (L) 8
3 (M) 18
4 (N) 16
5 (O) 1

Position in Periodic Table

Rhodium position in the periodic table Rh

ブロックと周期

ブロック

s p d f

周期

1 2 3 4 5 6 7

周期表

ランタノイド アクチノイド

Compounds Containing Rhodium

Rhodium(III) Chloride

RhCl₃

遷移金属 をもっと見る

21 Sc Scandium 22 Ti Titanium 23 V Vanadium 24 Cr Chromium 25 Mn Manganese 26 Fe Iron 27 Co Cobalt 28 Ni Nickel 29 Cu Copper 30 Zn Zinc

Frequently Asked Questions

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