64 Gd Gadolinium 157,25 u

Gadolinium

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

Gadolinium has unusual magnetic properties and is used as an MRI contrast agent. It has the highest neutron absorption cross-section among stable elements.

About Gadolinium

Valued in medicine as an MRI contrast agent, gadolinium (Gd) enhances the clarity of magnetic-resonance images by altering the magnetic behavior of nearby tissue. Element 64 is a lanthanide in period 6 of the f-block, with an atomic mass of 157.25, the electron configuration [Xe] 4f⁷ 5d¹ 6s², and a Pauling electronegativity of 1.2. It possesses the highest thermal-neutron absorption cross-section of any stable element, which makes it useful in nuclear-reactor shielding and control. Gadolinium also displays notable magnetic properties near room temperature. The silvery metal is solid at standard conditions.

Propriedades físicas

Massa atômica 157.25 u
Fase em STP Solid

Propriedades eletrônicas

Eletronegatividade 1.2

Configuração eletrônica

Configuração [Xe] 4f⁷ 5d¹ 6s²

Electron Shell Configuration

Gadolinium electron shell configuration Gd 2e⁻ 8e⁻ 18e⁻ 25e⁻ 9e⁻ 2e⁻
Electron shell structure of Gadolinium — electrons per shell.
Shell Electrons
1 (K) 2
2 (L) 8
3 (M) 18
4 (N) 25
5 (O) 9
6 (P) 2

Position in Periodic Table

Gadolinium position in the periodic table Gd

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 65 Tb Terbium 66 Dy Dysprosium 67 Ho Holmium

Frequently Asked Questions

What is Gadolinium?
Gadolinium (Gd) is a chemical element with atomic number 64. It is a solid at standard temperature and pressure, classified as a lantanídeo.
What are the key properties of Gadolinium?
Gadolinium has an atomic mass of 157.25 u.
What is the electron configuration of Gadolinium?
The electron configuration of Gadolinium is [Xe] 4f7 5d1 6s2. It is in the f-block of the periodic table.
What is the electronegativity of Gadolinium?
Gadolinium has an electronegativity of 1.2 on the Pauling scale.