Sign in or 
Share this
Holmium-The Detective
| My Nucleus has 67 protons. I have only one stable isotope: Holmium-165, which has 67 protons plus 98 neutrons. I have 6 radioisotopes, with half-lives ranging from 15 mins to 4570 years. My average atomic mass is: 164.93 grams/mole. | When neutral, I have 67 electrons. Shell structure: 2.8.18.29.8.2  First Energy Level: 2 Second Energy Level: 8 Third Energy Level: 18 Fourth Energy Level: 29 Fifth Energy Level: 8 Sixth Energy Level: 2 |
 |
| My Home (Body, Planet, Universe) There's no data on my presence in the human body, so there's probably very little there. I am 0.5 ppb by mass of the Universe. |   | My Compounds (My Friends!) Holmium (III) fluoride  Holmium (III) oxide  Holmium (III) sulphide  |
| ~My History~ I was discovered in 1878 by a Sedish chemist, Per Teodor Cleve, and independently by a French physicist, Louis Soret.  | ~My Jobs~ I and my friend, Oxygen are used in the filters used for the calibration of the wavelength settings in UV spectrophotometers. I can also absorb fission-bred neutrons, so I am used in nuclear reactors to keep a chain reaction under control. | Entertaining |
My Element Card
|
AndrewCheung |
Latest page update: made by AndrewCheung
, Oct 22 2006, 1:52 AM EDT
(about this update
About This Update
Edited by AndrewCheung
3 words added view changes - complete history) |
|
Keyword tags:
Andrew
Andrew Cheung
Andrew James Cheung
ho
holmium
More Info: links to this page
|
There are no threads for this page.
Be the first to start a new thread.
