Er is the chemical symbol for the element Erbium. Erbium is a chemical element in the lanthanide group on the periodic table, with the symbol Er and atomic number 68.
1.1 Names
1.1.1 Common name: Erbium
1.1.2 English name: Erbium
1.2 Atomic mass: 167.26
1.3 Atomic weight: 167.26 u
1.3.1 Molecular structure: Erbium is an element, so it does not have a molecular structure.
1.4 Ion structure: Er^3+
- Properties: Er
2.1 Physical properties of Er
State: Solid at room temperature
Color: Silver metal, can change color when reacting with air
Smell: No smell
pH: Not applicable as Erbium is a metal
2.2 Chemical properties of Er: Erbium is very reactive with oxygen and water, forming oxidation compounds.
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Common chemical equations for Er
We can see Erbium in oxidation reactions, for example:
Er + 3O -> _2 -> 2Er_2O_3 -
Preparation of Er
4.1 Laboratory preparation of Er: Erbium is usually extracted from minerals containing rare elements.
4.2 Industrial preparation of Er: In industry, Erbium is prepared from xenotime or euxenite ore.