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An '''element''' is a single type of [[atom]] as defined by its periodic number, which is the number of [[protons]] in its [[nucleus]].<ref>Wile, Dr. Jay L. ''Exploring Creation With Physical Science''. Apologia Educational Ministries, Inc. 1999, 2000</ref>

An '''element''' is a single type of [[atom]] as defined by its [[periodic number]], which is the number of [[protons]] in its [[nucleus]].<ref>Wile, Dr. Jay L. ''Exploring Creation With Physical Science''. Apologia Educational Ministries, Inc. 1999, 2000</ref> In contrast, a single element may have varying [[mass number]]s, relating to the number of neutrons in its nucleus.

[[Hydrogen]] has only one proton whereas [[uranium]] has 92. Uranium is the largest of the stable elements occurring in nature.   

The element [[hydrogen]] has only one proton whereas the element [[uranium]] has 92, and there are elements with even more protons than that. However, uranium is the largest of the stable elements occurring in nature.   

All known elements are listed on the [[periodic table]], with the heavier ones produced in a laboratory.  

All known elements are listed on the [[periodic table]], with the heavier ones produced in a laboratory. Joining atoms of the same or different elements produces chemical [[compound]]s. The elements and their compounds make up all matter on the earth and quite possibly all matter outside of the earth as well.

Chemical [[compound]]s are made from joining atoms of the same or different elements.

 

*[[Periodic table of the elements]]

==References==

==References==

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[[Category:Elements]]

[[Category:Elements]]