70 Yb Ytterbium 173.0451

Ytterbium

LANTHANIDE
Bohr Model: Electrons arranged in energy shells around the nucleus.

Ytterbium is a chemical element with symbol Yb and atomic number 70. It is the fourteenth and penultimate element in the lanthanide series, which is the basis of the relative stability of its +2 oxidation state. However, like the other lanthanides, its most common oxidation state is +3, seen in its oxide, halides and other compounds.

Quick Facts

Atomic Number 70
Period 6
Group 16
Phase Solid
Appearance Unknown
About Lanthanides

Lanthanides are shiny metallic elements with atomic numbers 57–71. They are often called 'rare-earth elements' and are used in magnets and lasers.

History

Discovered By Jean Charles Galissard de Marignac
Named By Unknown

Physical Properties

Atomic Mass 173.0451
Density 6.9 g/L
Molar Heat 26.74 J/(mol·K)
Phase Transition (Melting & Boiling Points)

Ytterbium melts at 1097 K and boils at 1469 K.

Atomic Properties

Electron Config [Xe] 4f14 6s2
Electronegativity 1.1
Electron Affinity -1.93 kJ/mol
Ionization Energy 603.4 kJ/mol
Orbital Filling Diagram
This diagram visualizes electron configuration according to the Aufbau principle and Hund's rule. Boxes represent orbitals (s, p, d, f), while arrows indicate electrons with spin up or down. Electrons fill lower energy levels first and occupy orbitals singly before pairing.

Photograph

Image of Ytterbium Source: Wikipedia

External Resources

Study Guide

Atomic Number

The number of protons in the nucleus, which defines the element.

Atomic Mass

The average mass of an atom, including protons and neutrons.

Electronegativity

A measure of how strongly an atom attracts electrons in a bond.

Ionization Energy

The energy required to remove an electron from an atom.

Electron Config

The arrangement of electrons in the atom's energy shells.