Y Yttrium
Element Information, Facts, Properties, Trends, Uses, Comparison with other elements

The solid state structure of Yttrium is Simple Hexagonal.

The Crystal structure can be described in terms of its unit Cell. The unit Cells repeats itself in three dimensional space to form the structure.

Unit Cell Parameters

The unit cell is represented in terms of its lattice parameters, which are the lengths of the cell edges Lattice Constants (a, b and c)

and the angles between them Lattice Angles (alpha, beta and gamma).

The positions of the atoms inside the unit cell are described by the set of atomic positions ( x_i, y_i, z_i) measured from a reference lattice point.

The symmetry properties of the crystal are described by the concept of space groups. All possible symmetric arrangements of particles in three-dimensional space are described by the 230 space groups (219 distinct types, or 230 if chiral copies are considered distinct.

Space Group Name	P63/mmc
Space Group Number	194
Crystal Structure	Simple Hexagonal
Number of atoms per unit cell

Yttrium atoms have 39 electrons and the electronic shell structure is [2, 8, 18, 9, 2] with Atomic Term Symbol (Quantum Numbers) ²D_3/2.

Atomic Number	39
Number of Electrons (with no charge)	39
Number of Protons	39
Mass Number	89
Number of Neutrons	50
Shell structure (Electrons per energy level)	2, 8, 18, 9, 2
Electron Configuration	[Kr] 4d1 5s2
Valence Electrons	4d1 5s2
Valence (Valency)	3
Main Oxidation States	3
Oxidation States	0, 1, 2, 3
Atomic Term Symbol (Quantum Numbers)	2D3/2

Bohr Atomic Model of Yttrium - Electrons per energy level

n		s	p	d	f

Ground State Electronic Configuration of Yttrium - neutral Yttrium atom

Abbreviated electronic configuration of Yttrium

The ground state abbreviated electronic configuration of Neutral Yttrium atom is [Kr] 4d1 5s2. The portion of Yttrium configuration that is equivalent to the noble gas of the preceding period, is abbreviated as [Kr]. For atoms with many electrons, this notation can become lengthy and so an abbreviated notation is used. This is important as it is the Valence electrons 4d1 5s2, electrons in the outermost shell that determine the chemical properties of the element.

Unabbreviated electronic configuration of neutral Yttrium

Complete ground state electronic configuration for the Yttrium atom, Unabbreviated electronic configuration

1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d1 5s2

Electrons are filled in atomic orbitals as per the order determined by the Aufbau principle, Pauli Exclusion Principle and Hund’s Rule.

As per the Aufbau principle the electrons will occupy the orbitals having lower energies before occupying higher energy orbitals. According to this principle, electrons are filled in the following order: 1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f, 6d, 7p…

The Pauli exclusion principle states that a maximum of two electrons, each having opposite spins, can fit in an orbital.

Hund's rule states that every orbital in a given subshell is singly occupied by electrons before a second electron is filled in an orbital.

Atomic Structure of Yttrium

Yttrium atomic radius is 212 pm, while it's covalent radius is 162 pm.

Atomic Spectrum of Yttrium

The electron affinity of Yttrium is 29.6 kJ/mol.

Ionization Energy of Yttrium

Refer to table below for Ionization energies of Yttrium

Refer to below table for Yttrium Physical Properties

Elastic Properties

Hardness of Yttrium - Tests to Measure of Hardness of Element

Yttrium Electrical Properties

Yttrium is Conductor of electricity. Refer to table below for the Electrical properties ofYttrium

Yttrium Heat and Conduction Properties

Yttrium Magnetic Properties

Optical Properties of Yttrium

Acoustic Properties of Yttrium

Refer to table below for Thermal properties of Yttrium

Enthalpies of Yttrium

Yttrium has 33 isotopes, with between 76 and 108 nucleons. Yttrium has 1 stable naturally occuring isotopes.

Isotopes of Yttrium - Naturally occurring stable Isotopes: 89Y.