Jmdonev: 1 revision imported

2018-09-03T22:23:40Z

1 revision imported

← Older revision	Revision as of 22:23, 3 September 2018
(No difference)

energy>Jmdonev at 21:34, 21 August 2018

2018-08-21T21:34:57Z

← Older revision		Revision as of 21:34, 21 August 2018
Line 1:		Line 1:
	[[Category:Done ~~2015~~-02-15]]		[[Category:Done 2018-08-03]]
	<onlyinclude>The '''atomic mass''' ~~of an [[element]]~~ is the microscopic [[mass]] of an element in [[atomic mass unit]]s.<ref name=ref1>http://chemwiki.ucdavis.edu/Physical_Chemistry/Atomic_Theory/Atomic_Mass</ref> </onlyinclude>		<onlyinclude>The '''atomic mass''' is the microscopic [[mass]] of an [[element]] in [[atomic mass unit]]s.<ref name=ref1>http://chemwiki.ucdavis.edu/Physical_Chemistry/Atomic_Theory/Atomic_Mass</ref> </onlyinclude> Also known as the average mass, or [[atomic weight]], it is roughly the sum of [[proton]]s (the [[atomic number]]) and [[neutron]]s in an atomic [[nucleus]]. The same element may have various atomic masses, also known as [[isotope]]s (for example <sup>235</sup>U has a different atomic mass than <sup>238</sup>U). These isotopes will vary in the number of neutrons ''not'' protons. Electrons orbit around the nucleus and their mass is much smaller, therefore, isn't considered as part of the atom's mass.<ref>Elements, "Atoms and Elements", Dlc.dcccd.edu, 2018. [Online]. Available: https://dlc.dcccd.edu/biology1-2/atoms-and-elements. [Accessed: 14- Aug- 2018].</ref>

	~~This means that different [[isotope]]s~~ of an ~~element have different~~ atomic ~~masses (for example <sup>235</sup>U has a different~~ atomic mass ~~than <sup>238<~~/~~sup>U)~~.		Careful measurements of the mass of individual atoms will yield an atomic mass.
			To learn more about atomic mass, and its units, check out ''[http://hyperphysics.phy-astr.gsu.edu/hbase/nuclear/nucuni.html hyperphysics]'' or ''[http://chemwiki.ucdavis.edu/Physical_Chemistry/Atomic_Theory/Atomic_Mass UC Davis' Chem Wiki]''.

	~~The~~ [[~~atomic number~~]]~~, also known as the average mass, or~~ [[~~atomic weight~~]], ~~is an average mass of a distribution of isotopes of the element. Because it is an approximation of this mass, it is roughly the sum of the number of~~ [[~~proton~~]]~~s and~~ [[~~neutron~~]]~~s in an atomic~~ [[~~nucleus~~]]~~.<ref name=ref1/>~~		Below, all the numbers listed beside each element is the atomic mass for the most common isotope.
			Choose a clickable element in the table below to learn more about it and its role in energy and society.
			<html><iframe src='https://energyeducation.ca/jacqueline/tablesmall.php' style='border: none;width:820px;height:500px;'></iframe></html>

			==For Further Reading==
			*[[Atom]]
			*[[Nucleus]]
			*[[Element]]
			*[[Proton]], [[Neutron]], [[Electron]]
			*Or explore a [[Special:Random\|random page]]

	~~Careful measurements of the mass of individual atoms will yield an atomic mass.~~
	To learn more about atomic mass, and its units, check out ''[http://hyperphysics.phy-astr.gsu.edu/hbase/nuclear/nucuni.html hyperphysics]'' or ''[http://chemwiki.ucdavis.edu/Physical_Chemistry/Atomic_Theory/Atomic_Mass UC Davis' Chem Wiki]''.

J.williams: 1 revision imported

2015-08-26T21:30:46Z

1 revision imported

← Older revision	Revision as of 21:30, 26 August 2015
(No difference)

J.williams at 16:40, 12 August 2015

2015-08-12T16:40:28Z

New page

[[Category:Done 2015-02-15]]
<onlyinclude>The '''atomic mass''' of an [[element]] is the microscopic [[mass]] of an element in [[atomic mass unit]]s.<ref name=ref1>http://chemwiki.ucdavis.edu/Physical_Chemistry/Atomic_Theory/Atomic_Mass</ref> </onlyinclude>

This means that different [[isotope]]s of an element have different atomic masses (for example <sup>235</sup>U has a different atomic mass than <sup>238</sup>U).

The [[atomic number]], also known as the average mass, or [[atomic weight]], is an average mass of a distribution of isotopes of the element. Because it is an approximation of this mass, it is roughly the sum of the number of [[proton]]s and [[neutron]]s in an atomic [[nucleus]].<ref name=ref1/>

Careful measurements of the mass of individual atoms will yield an atomic mass.
To learn more about atomic mass, and its units, check out ''[http://hyperphysics.phy-astr.gsu.edu/hbase/nuclear/nucuni.html hyperphysics]'' or ''[http://chemwiki.ucdavis.edu/Physical_Chemistry/Atomic_Theory/Atomic_Mass UC Davis' Chem Wiki]''.

==References==
{{reflist}}
[[Category:Uploaded]]

Atomic mass - Revision history

Jmdonev: 1 revision imported

energy>Jmdonev at 21:34, 21 August 2018

J.williams: 1 revision imported

J.williams at 16:40, 12 August 2015