39 Y Yttrium 88.906 u

Yttrium

Period
5
Group
3
Block
d-block
Phase (STP)
Solid

Yttrium is a silvery transition metal used in LEDs, superconductors, and cancer treatment. It is often found with rare earth elements.

About Yttrium

Yttrium is a silvery transition metal of atomic number 39 and atomic mass 88.906, a solid under standard conditions with the configuration [Kr] 4d1 5s2 and an electronegativity of 1.22. Positioned in group 3, period 5, it is frequently found together with the rare earth elements and shares many of their properties, so that it is commonly mined and processed alongside them. Yttrium is used in light-emitting diodes and in superconducting materials, and its radioactive isotopes have applications in cancer treatment. Its chemistry is dominated by the stable, triply charged ion, a single oxidation state that distinguishes it from many later transition metals.

Physical Properties

Atomic Mass 88.906 u
Phase at STP Solid

Electronic Properties

Electronegativity 1.22

Electron Configuration

Configuration [Kr] 4d¹ 5s²

Electron Shell Configuration

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

Position in Periodic Table

Yttrium position in the periodic table Y

Block & Period

Block

s p d f

Period

1 2 3 4 5 6 7

Periodic Table

Lanthanides Actinides

Reactions Involving Y

Beta Decay of Strontium-90

⁹⁰Sr → ⁹⁰Y + e⁻ + ν̄ₑ

Nuclear

Compounds Containing Yttrium

Yttrium Barium Copper Oxide

YBa₂Cu₃O₇

Yttrium Oxide

Y₂O₃

More Transition Metal

21 Sc Scandium 22 Ti Titanium 23 V Vanadium 24 Cr Chromium 25 Mn Manganese 26 Fe Iron 27 Co Cobalt 28 Ni Nickel 29 Cu Copper 30 Zn Zinc

Frequently Asked Questions

What is Yttrium?
Yttrium (Y) is a chemical element with atomic number 39. It is a solid at standard temperature and pressure, classified as a transition metal.
What are the key properties of Yttrium?
Yttrium has an atomic mass of 88.906 u.
What is the electron configuration of Yttrium?
The electron configuration of Yttrium is [Kr] 4d1 5s2. It is in the d-block of the periodic table.
What is the electronegativity of Yttrium?
Yttrium has an electronegativity of 1.22 on the Pauling scale.