66 Dy Dysprosium 162.5 u

Dysprosium

Period
6
Group
—
Block
f-block
Phase (STP)
Solid

Dysprosium is used in neodymium magnets to improve high-temperature performance. It has the highest magnetic susceptibility of any element.

About Dysprosium

Possessing the highest magnetic susceptibility of any element, dysprosium (Dy) is a lanthanide of exceptional importance to modern magnets. Element 66 lies in period 6 of the f-block, with an atomic mass of 162.5, the electron configuration [Xe] 4f¹⁰ 6s², and a Pauling electronegativity of 1.22. It is added to neodymium-iron-boron magnets to preserve their strength at the high operating temperatures of electric-vehicle motors and wind turbines. Dysprosium also appears in specialized alloys and reactor control-rod materials. A soft, silvery metal, it is solid at standard conditions.

Physical Properties

Atomic Mass 162.5 u
Phase at STP Solid

Electronic Properties

Electronegativity 1.22

Electron Configuration

Configuration [Xe] 4f¹⁰ 6s²

Electron Shell Configuration

Dysprosium electron shell configuration Dy 2e⁻ 8e⁻ 18e⁻ 28e⁻ 8e⁻ 2e⁻
Electron shell structure of Dysprosium — electrons per shell.
Shell Electrons
1 (K) 2
2 (L) 8
3 (M) 18
4 (N) 28
5 (O) 8
6 (P) 2

Position in Periodic Table

Dysprosium position in the periodic table Dy

Block & Period

Block

s p d f

Period

1 2 3 4 5 6 7

Periodic Table

Lanthanides Actinides

More Lanthanide

57 La Lanthanum 58 Ce Cerium 59 Pr Praseodymium 60 Nd Neodymium 61 Pm Promethium 62 Sm Samarium 63 Eu Europium 64 Gd Gadolinium 65 Tb Terbium 67 Ho Holmium

Frequently Asked Questions

What is Dysprosium?
Dysprosium (Dy) is a chemical element with atomic number 66. It is a solid at standard temperature and pressure, classified as a lanthanide.
What are the key properties of Dysprosium?
Dysprosium has an atomic mass of 162.5 u.
What is the electron configuration of Dysprosium?
The electron configuration of Dysprosium is [Xe] 4f10 6s2. It is in the f-block of the periodic table.
What is the electronegativity of Dysprosium?
Dysprosium has an electronegativity of 1.22 on the Pauling scale.