Calcium vs Oxygen - What's the difference?
calcium | oxygen |
A chemical element, atomic number 20, that is an alkaline earth metal and occurs naturally as carbonate in limestone and as silicate in many rocks.
* {{quote-magazine, year=2013, month=September-October, author=
, magazine=(American Scientist), title= (countable) An atom of this element.
A chemical element (symbol O) with an atomic number of 8 and relative atomic mass of 15.9994.
Molecular oxygen (O2), a colorless, odorless gas at room temperature.
* {{quote-magazine, year=2013, month=September-October, author=
, magazine=(American Scientist), title= (medicine) A mixture of oxygen and other gases, administered to a patient to help him or her to breathe.
(countable) An atom of this element.
In countable terms the difference between calcium and oxygen
is that calcium is an atom of this element while oxygen is an atom of this element.As nouns the difference between calcium and oxygen
is that calcium is a chemical element, atomic number 20, that is an alkaline earth metal and occurs naturally as carbonate in limestone and as silicate in many rocks while oxygen is a chemical element (symbol O) with an atomic number of 8 and relative atomic mass of 15.9994.calcium
English
Noun
(wikipedia calcium) (Symbol'': ''Ca )Katie L. Burke
In the News, passage=Oxygen levels on Earth skyrocketed 2.4 billion years ago, when cyanobacteria evolved photosynthesis:
Derived terms
* bismuth strontium calcium copper oxide * calc-, calci- * calcic * calcio- * * * * * * * * calcium arsenate * calcium carbide * calcium carbonate * calcium chloride * calcium cyanamide * calcium dihydrogen phosphate * calcium fluoride * calcium hydride * calcium hydroxide * calcium light * calcium magnesium carbonate * calcium magnesium silicate * calcium nitrate * calcium oxide * calcium peroxide * calcium phosphate * calcium phosphide * calcium platinate * calcium sulfate, calcium sulphate * calcium sulfide, calcium sulphide * calcium tungstate * dicalcium * monocalcium * oxycalcium * tricalciumReferences
External links
See also
* chalk * lime * limestone ----oxygen
English
Noun
(wikipedia oxygen)Katie L. Burke
In the News, passage=Oxygen' levels on Earth skyrocketed 2.4 billion years ago, when cyanobacteria evolved photosynthesis: the ability to convert water and carbon dioxide into carbohydrates and waste ' oxygen using solar energy. The evolutionary precursor of photosynthesis is still under debate, and a new study sheds light.}}