Roentgenium: Difference between revisions

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imported>David Yamakuchi
m (New page: {{subpages}}{{Basic elemental info}}<references/>)
 
imported>Milton Beychok
m (Replaced infobox, expanded electron configuration and edited the lede.)
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{{subpages}}{{Basic elemental info}}<references/>
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{{Elem_Infobox
|elName=Roentgenium
|eltrnCfg=1s<sup>2</sup>2s<sup>2</sup>2p<sup>6</sup>3s<sup>2</sup>3p<sup>6</sup>3d<sup>10</sup>4s<sup>2</sup>4p<sup>6</sup> 4d<sup>10</sup>5s<sup>2</sup>5p<sup>6</sup>4f<sup>14</sup>5d<sup>10</sup>6s<sup>2</sup>6p<sup>6</sup>5f<sup>14</sup>&thinsp;6d<sup>9</sup>7s<sup>2</sup>
|no1=
|no2=
|no3=
|no4=
|properties=
|compounds=
|uses=
|hazard=Radioactive
}}
 
'''Roentgenium''' is a [[Chemical elements|chemical element]], having the [[chemical symbol]] Ds and its [[atomic number]] (the number of [[proton]]s) is 111. It has a [[Atomic mass#Standard atomic weights of the elements|standard atomic weight]] of 280 g•mol<sup> −1</sup> and it is a [[solid]] in its elemental form.
 
Roentgenium is considered a member of the "Transition metal" class of elements. There is no available data for its [[boiling point]] or its [[melting point]].

Revision as of 23:19, 4 May 2011

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Roentgenium
280



  Rg
111
1s22s22p63s23p63d104s24p6 4d105s25p64f145d106s26p65f14 6d97s2
[ ? ] Transition metal:
Hazard:
Radioactive


Roentgenium is a chemical element, having the chemical symbol Ds and its atomic number (the number of protons) is 111. It has a standard atomic weight of 280 g•mol −1 and it is a solid in its elemental form.

Roentgenium is considered a member of the "Transition metal" class of elements. There is no available data for its boiling point or its melting point.