62 Sm Samarium 150.36 u

Samarium

周期
6
族
—
区块
f-区块
相态 (STP)
Solid

Samarium is a moderately hard lanthanide used in samarium-cobalt magnets. These magnets resist demagnetization at high temperatures.

About Samarium

Samarium (Sm) is a moderately hard, silvery lanthanide, element 62, in period 6 of the f-block. Its atomic mass is 150.36, its electron configuration [Xe] 4f⁶ 6s², and its Pauling electronegativity 1.17. The element is central to samarium-cobalt permanent magnets, which are prized for retaining their magnetism at high temperatures where other magnets would fail, suiting them to aerospace and defense hardware. Samarium also finds use in certain catalysts and lasers. Solid at standard conditions, it commonly takes the +3 oxidation state, though the less usual +2 state is also accessible.

物理属性

原子质量 150.36 u
STP相态 Solid

电子属性

电负性 1.17

电子构型

构型 [Xe] 4f⁶ 6s²

Electron Shell Configuration

Samarium electron shell configuration Sm 2e⁻ 8e⁻ 18e⁻ 24e⁻ 8e⁻ 2e⁻
Electron shell structure of Samarium — electrons per shell.
Shell Electrons
1 (K) 2
2 (L) 8
3 (M) 18
4 (N) 24
5 (O) 8
6 (P) 2

Position in Periodic Table

Samarium position in the periodic table Sm

区块与周期

区块

s p d f

周期

1 2 3 4 5 6 7

元素周期表

镧系元素 锕系元素

Compounds Containing Samarium

Samarium Cobalt

SmCo₅

更多镧系元素

57 La Lanthanum 58 Ce Cerium 59 Pr Praseodymium 60 Nd Neodymium 61 Pm Promethium 63 Eu Europium 64 Gd Gadolinium 65 Tb Terbium 66 Dy Dysprosium 67 Ho Holmium

Frequently Asked Questions

What is Samarium?
Samarium (Sm) is a chemical element with atomic number 62. It is a solid at standard temperature and pressure, classified as a 镧系元素.
What are the key properties of Samarium?
Samarium has an atomic mass of 150.36 u.
What is the electron configuration of Samarium?
The electron configuration of Samarium is [Xe] 4f6 6s2. It is in the f-block of the periodic table.
What is the electronegativity of Samarium?
Samarium has an electronegativity of 1.17 on the Pauling scale.