FACTOID # 109: What is in a name? More than 90% of people in Bhutan, Burundi and Burkina Faso are involved in agriculture.
 
 Home   Encyclopedia   Statistics   Countries A-Z   Flags   Maps   Education   Forum   FAQ   About 
 
 
 
WHAT'S NEW
RECENT ARTICLES
More Recent Articles »
 

SEARCH ALL

FACTS & STATISTICS    Advanced view

Search encyclopedia, statistics and forums:

 

 

(* = Graphable)

 

 


Encyclopedia > Actinoid
Atomic No. Name Symbol
89 Actinium Ac
90 Thorium Th
91 Protactinium Pa
92 Uranium U
93 Neptunium Np
94 Plutonium Pu
95 Americium Am
96 Curium Cm
97 Berkelium Bk
98 Californium Cf
99 Einsteinium Es
100 Fermium Fm
101 Mendelevium Md
102 Nobelium No


The actinide series encompasses the 14 chemical elements that lie between actinium and nobelium on the periodic table with atomic numbers 89 - 102 inclusive. They are similar in characteristics to the elements of the lanthanide series. The actinides with the higher atomic numbers are not found in nature and have short half-lives.


The actinides are typically placed below the main body of the periodic table, in the manner of a footnote. The full-width version of the periodic table shows the position of the actinides more clearly.






  Results from FactBites:
 
purevolume™ | Actinoid (607 words)
Actinoid was originally brought to life as a mix of a cover band and a parody band (much along the lines of Wierd Al).
Actinoid decided on their name and their lineup in late '04 early '05 and have been jamming ever since.
Actinoid also recorded 4 "demo CDs," which were sold to unsuspecting fans, some of which have been reimbursed for their...investment.
Chemistry International -- Newsmagazine for IUPAC (1092 words)
The elements from actinium through uranium (along with neptunium through curium when they were first synthesized) were originally placed with the main table elements, in spite of problems with their chemical properties.
Lawrencium completed the actinoid series and element 104 was placed in the seventh row of the main table.
The ending “-ide” normally indicates a negatives ion, and therefore “lanthanoid” and “actinoid” are preferred to “lanthanide” and “actinide.” However, owing to wide current use, “lanthanide” and “actinide” are still allowed.
  More results at FactBites »


 
 

COMMENTARY     


Share your thoughts, questions and commentary here
Your name
Your comments

Want to know more?
Search encyclopedia, statistics and forums:

 


Lesson Plans | Student Area | Student FAQ | Reviews | Press Releases |  Feeds | Contact
The Wikipedia article included on this page is licensed under the GFDL.
Images may be subject to relevant owners' copyright.
All other elements are (c) copyright NationMaster.com 2003-5. All Rights Reserved.
Usage implies agreement with terms, 1022, m