51 Sb Antimony 121.76 u

Antimony

周期
5
族
15
ブロック
p-ブロック
相 (STP)
Solid

Antimony is a lustrous metalloid used in flame retardants, batteries, and semiconductors. It has been known since ancient times.

About Antimony

Antimony (Sb) is a lustrous, silvery metalloid known and used since ancient times. Element 51 occupies group 15 of period 5 in the p-block, with an atomic mass of 121.76, the electron configuration [Kr] 4d¹⁰ 5s² 5p³, and a Pauling electronegativity of 2.05. Its compounds are widely employed as flame retardants, while the element itself hardens lead in battery plates and appears in certain semiconductors. Displaying properties intermediate between metals and nonmetals, antimony is brittle and solid at standard conditions, a characteristic metalloid of the nitrogen group that sits directly below arsenic.

物理的特性

原子質量 121.76 u
STPにおける相 Solid

電子的特性

電気陰性度 2.05

電子配置

配置 [Kr] 4d¹⁰ 5s² 5p³

Electron Shell Configuration

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

Position in Periodic Table

Antimony position in the periodic table Sb

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 Antimony

Antimony Trioxide

Sb₂O₃

半金属 をもっと見る

5 B Boron 14 Si Silicon 32 Ge Germanium 33 As Arsenic 52 Te Tellurium

Frequently Asked Questions

What is Antimony?
Antimony (Sb) is a chemical element with atomic number 51. It is a solid at standard temperature and pressure, classified as a 半金属.
What are the key properties of Antimony?
Antimony has an atomic mass of 121.76 u.
What is the electron configuration of Antimony?
The electron configuration of Antimony is [Kr] 4d10 5s2 5p3. It is in the p-block of the periodic table.
What is the electronegativity of Antimony?
Antimony has an electronegativity of 2.05 on the Pauling scale.