Zinc: Difference between revisions
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'''Zinc''' is a [[Chemical elements|chemical element]], having the [[chemical symbol]] Zn. Its [[atomic number]] (the number of [[proton]]s) is 30. It has a [[Atomic mass#Standard atomic weights of the elements|standard atomic weight]] of 65.409 g•mol<sup> −1</sup>, and is a [[solid]] in its elemental form. | |||
Copper is considered to be a member of the "Transition metal" class of element. At a [[pressure]] of 101.325 k[[Pascal (unit)|Pa]], it has a [[boiling point]] of 907 °[[Celsius (unit)|C]], and a [[melting point]] of 419.5 °C. | |||
==Health care== | ==Health care== | ||
Revision as of 15:53, 20 April 2011
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Zinc is a chemical element, having the chemical symbol Zn. Its atomic number (the number of protons) is 30. It has a standard atomic weight of 65.409 g•mol −1, and is a solid in its elemental form.
Copper is considered to be a member of the "Transition metal" class of element. At a pressure of 101.325 kPa, it has a boiling point of 907 °C, and a melting point of 419.5 °C.
Health care
"Zinc administered within 24 hours of onset of symptoms reduces the duration and severity of the common cold in healthy people" according to the Cochrane Collaboration.[1]
References
- ↑ Singh M, Das RR (2011). "Zinc for the common cold.". Cochrane Database Syst Rev 2: CD001364. DOI:10.1002/14651858.CD001364.pub3. PMID 21328251. Research Blogging.