Calcium

Calcium is the chemical element Chemical element

A chemical element, often called simply an element, is a substance [i] that can ... 

 in the periodic table that has the symbol Ca and atomic number 20. Calcium is a soft grey alkaline earth metal that is used as a reducing Redox

Redox reactions include all chemical processes [i] in which atoms have their oxidation number [i] ... 

 agent in the extraction of thorium Thorium

Thorium is a chemical element [i] in the periodic table [i] that has the symbol Th and atomic number [i] ... 

, zirconium Zirconium

Zirconium is a chemical element [i] in the modern periodic table [i] that is assigned the symbol Zr ... 

 and uranium Uranium

Uranium is a chemical element [i] in the periodic table [i] that has the symbol U and atomic number [i] ... 

. Calcium is also the fifth most abundant element in the Earth Earth

Earth is the third planet [i] in the solar system [i] in terms of distance from the Sun [i], and the fi ... 

's crust.

Discussions

Discussion Features

Ask a question about 'Calcium'    Start a new discussion about 'Calcium'    Answer questions about 'Calcium'    'Calcium' discussion forum

Encyclopedia

Calcium is the chemical element Chemical element

A chemical element, often called simply an element, is a substance [i] that can... 

 in the periodic table that has the symbol Ca and atomic number 20. Calcium is a soft grey alkaline earth metal that is used as a reducing Redox

Redox reactions include all chemical processes [i] in which atoms have their oxidation number [i] ... 

 agent in the extraction of thorium Thorium

Thorium is a chemical element [i] in the periodic table [i] that has the symbol Th and atomic number [i] ... 

, zirconium Zirconium

Zirconium is a chemical element [i] in the modern periodic table [i] that is assigned the symbol Zr ... 

 and uranium Uranium

Uranium is a chemical element [i] in the periodic table [i] that has the symbol U and atomic number [i] ... 

. Calcium is also the fifth most abundant element in the Earth Earth

Earth is the third planet [i] in the solar system [i] in terms of distance from the Sun [i], and the fi ... 

's crust.

Categories: