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atomic masses | A Wisdom Archive on atomic masses | | atomic masses A selection of articles related to atomic masses | |
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atomic masses
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| ARTICLES RELATED TO atomic masses | | | |  atomic masses: Encyclopedia II - Periodic table - Periodicity of chemical propertiesElements adjacent to one another within a group have similar physical properties, despite their significant differences in mass. Elements adjacent to one another within a period, or energy level, have similar mass but different properties.
For example, very near to nitrogen (N) in the second period of the chart are carbon (C) and oxygen (O). Despite their similarities in mass (only a few atomic mass units), they have extremely different properties, as can be seen by looking at their allotropes: diatomic oxygen is a gas that supports burning, diatomic nitrogen is a gas that d ...
See also:Periodic table, Periodic table - Groups, Periodic table - Periodicity of chemical properties, Periodic table - Methods for displaying the periodic table, Periodic table - Standard periodic table, Periodic table - Other depictions, Periodic table - Periodic table structure reflects electron configuration, Periodic table - History, Periodic table - Further resources Read more here: » Periodic table: Encyclopedia II - Periodic table - Periodicity of chemical properties |
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| | | | | atomic masses: Encyclopedia II - Periodic table - Methods for displaying the periodic table
Periodic table - Standard periodic table.
1Actinides and lanthanides are collectively known as "Rare Earth Metals".
2Alkali metals, alkaline earth metals, transition metals, actinides, lanthanides, and poor metals are all collectively known as "Metals".
3Halogens and noble gases are also non-metals.
State at standard temperature and pressure
those with atomic number in red are gases
those with ...
See also:Periodic table, Periodic table - Groups, Periodic table - Periodicity of chemical properties, Periodic table - Methods for displaying the periodic table, Periodic table - Standard periodic table, Periodic table - Other depictions, Periodic table - Periodic table structure reflects electron configuration, Periodic table - History, Periodic table - Further resources Read more here: » Periodic table: Encyclopedia II - Periodic table - Methods for displaying the periodic table |
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