Calcium
id:
calcium-186-2665313
title:
Calcium
text:
Calcium is a chemical element; it has symbol Ca and atomic number 20. As an alkaline earth metal, calcium is a reactive metal that forms a dark oxide-nitride layer when exposed to air. Its physical and chemical properties are most similar to its heavier homologues strontium and barium. It is the fifth most abundant element in Earth's crust, and the third most abundant metal, after iron and aluminium. The most common calcium compound on Earth is calcium carbonate, found in limestone and the fossi
brand slug:
wiki
category slug:
encyclopedia
description:
Chemical element with atomic number 20 (Ca)
original url:
https://en.wikipedia.org/wiki/Calcium
date created:
2001-05-17T13:00:00Z
date modified:
2024-09-08T03:24:40Z
main entity:
{"identifier":"Q706","url":"https://www.wikidata.org/entity/Q706"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/9/96/Calcium_unter_Argon_Schutzgasatmosph%C3%A4re.jpg","width":1626,"height":1068}
fields total:
13
integrity:
16