Actinium: Difference between revisions
Jump to navigation
Jump to search
imported>David Yamakuchi m (New page: {{subpages}}{{Basic elemental info}}<references/>) |
(No difference)
|
Revision as of 17:35, 10 May 2010
Actinium is a chemical element, having the chemical symbol Ac.
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Its atomic number (the number of protons) is 89. It has a Standard Atomic Weight of 227, and is typically found as a solid in its elemental form.
Actinium is considered to be a member of the "Transition metal" class of elements, has a boiling point of 3,198 °C, and a melting point of 1,051 °C.