65 Tb Terbium 158,93 u

Terbium

Período
6
Grupo
—
Bloco
f-bloco
Fase (STP)
Solid

Terbium is a silvery lanthanide used in green phosphors for displays. It is also used in solid-state devices and fuel cells.

About Terbium

Terbium (Tb) is a soft, silvery lanthanide, element 65, in period 6 of the f-block. It has an atomic mass of 158.93, the electron configuration [Xe] 4f⁹ 6s², and a Pauling electronegativity of 1.2. The element is a key source of the green phosphors used in fluorescent lamps and color displays, and it appears in solid-state electronic devices and fuel cells. Terbium is also a component of magnetostrictive alloys that change shape in a magnetic field. Malleable and solid at standard conditions, it adopts the +3 oxidation state shared across the lanthanide series.

Propriedades físicas

Massa atômica 158.93 u
Fase em STP Solid

Propriedades eletrônicas

Eletronegatividade 1.2

Configuração eletrônica

Configuração [Xe] 4f⁹ 6s²

Electron Shell Configuration

Terbium electron shell configuration Tb 2e⁻ 8e⁻ 18e⁻ 27e⁻ 8e⁻ 2e⁻
Electron shell structure of Terbium — electrons per shell.
Shell Electrons
1 (K) 2
2 (L) 8
3 (M) 18
4 (N) 27
5 (O) 8
6 (P) 2

Position in Periodic Table

Terbium position in the periodic table Tb

Bloco e período

Bloco

s p d f

Período

1 2 3 4 5 6 7

Tabela Periódica

Lantanídeos Actinídeos

Mais Lantanídeo

57 La Lanthanum 58 Ce Cerium 59 Pr Praseodymium 60 Nd Neodymium 61 Pm Promethium 62 Sm Samarium 63 Eu Europium 64 Gd Gadolinium 66 Dy Dysprosium 67 Ho Holmium

Frequently Asked Questions

What is Terbium?
Terbium (Tb) is a chemical element with atomic number 65. It is a solid at standard temperature and pressure, classified as a lantanídeo.
What are the key properties of Terbium?
Terbium has an atomic mass of 158.93 u.
What is the electron configuration of Terbium?
The electron configuration of Terbium is [Xe] 4f9 6s2. It is in the f-block of the periodic table.
What is the electronegativity of Terbium?
Terbium has an electronegativity of 1.2 on the Pauling scale.