Jump to content

Iterbium

O Uicipeid


Iterbium
Iterbium.
Clàr pillteach
H He
Li Be B C N O F Ne
Na Mg Al Si P S Cl Ar
K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr
Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe
Cs Ba * Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn
Fr Ra ** Rf Db Sg Bh Hs Mt Ds Rg Cn Nh Fl Mc Lv Ts Og
* La Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu
** Ac Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr
Buadhan
Samhla Yb
Àireamh 70
Ùine 6
Bloca f
Seòrsa Lantanach
Buadhan stuthach
Dath Airgead-gheal
Teothachd leaghaidh 1097 K ​(824 °C, ​1515 °F)
Teothachd goilidh 1469 K ​(1196 °C, ​2185 °F)
Buadhan atamach
Tomad atamach/Da 173.054(5)[1]
Comh-dhealbhadh atamach [Xe] 4f14 6s2
Cor ogsaideachaidh +1, +2, +3
1mh lùth aidheonachaidh/kJ mol–1 603.4 kJ/mol
2mh lùth aidheonachaidh/kJ mol–1 1174.8 kJ/mol
3mh lùth aidheonachaidh/kJ mol–1 2417 kJ/mol

'S e eileamaid cheimigeach a tha ann an iterbium le samhla Yb agus àireamh atamach 70.

'S e meatailt bog agus lantanach a tha ann.

Ann an 1878 lorg Jean Charles Galissard de Marignac ogsaid ùr ann an gadolinit agus dh'ainmich e am meatailt "iterbium" air Ytterby san t-Suain. Ann an 1907 lorg Georges Urbain san Fhraing,[2] Carl Auer von Welsbach san Ostair,[3] agus Charles James sna Stàitean Aonaichte[4] gun robh dà eileamaid anns an ogsaid seo.

Dh'ainmich Urbain iad neoiterbium agus lutecium (lutetium an-diugh) agus von Welsbach iad aldebaranium is cassiopeium air an reul agus air an reul-bhad. Rogh an Coimisean Eadar-naiseanta air Tomadan Atamach na h-ainmean Urbain (seach iterbium an àite neoiterbium) agus thug iad prìomhachas dha.

Cleachdar iterbium-169 mar bun-gathan-gamma airson rèidiografaidh.

Iomraidhean

[deasaich | deasaich an tùs]
  1. http://www.ciaaw.org/atomic-weights.htm
  2. http://gallica.bnf.fr/ark:/12148/bpt6k3099v/f759.image.langEN
  3. http://dx.doi.org/10.1007/BF01558944
  4. http://www.acs.org/content/acs/en/education/whatischemistry/landmarks/earthelements.html
pFad - Phonifier reborn

Pfad - The Proxy pFad of © 2024 Garber Painting. All rights reserved.

Note: This service is not intended for secure transactions such as banking, social media, email, or purchasing. Use at your own risk. We assume no liability whatsoever for broken pages.


Alternative Proxies:

Alternative Proxy

pFad Proxy

pFad v3 Proxy

pFad v4 Proxy