Promethium - Revision history

Mabus at 19:19, 17 December 2022

2022-12-17T19:19:30Z

Mabus at 17:31, 23 December 2021

2021-12-23T17:31:04Z

Draeger: Added a lot of information in the infobox and all text in the other sections.

2020-08-23T19:13:18Z

Added a lot of information in the infobox and all text in the other sections.

Show changes

Draeger: Created page

2020-08-13T23:00:14Z

Created page

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{{Stub}}
{{Infobox element

|image name=
|image alt=
|image size=
|image name comment=
|image name 2=
|image alt 2=
|image size 2=
|image name 2 comment=

|name= Promethium
|symbol= Pm
|pronounce=
|pronounce ref=
|pronounce comment=
|pronounce 2=
|alt name=
|alt names=
|allotropes=
|appearance=

|above=
|below=
|left=
|right=
|number= 63
|atomic mass=
|atomic mass 2=
|atomic mass ref=
|atomic mass comment=
|series=
|series ref=
|series comment=
|series color=
|group=
|group ref=
|group comment=
|period=
|period ref=
|period comment=
|block=
|block ref=
|block comment=
|electron configuration=
|electron configuration ref=
|electron configuration comment=
|electrons per shell=
|electrons per shell ref=
|electrons per shell comment=

|physical properties comment=
|color=
|phase=
|phase ref=
|phase comment=
|melting point K=
|melting point C=
|melting point F=
|melting point ref=
|melting point comment=
|boiling point K=
|boiling point C=
|boiling point F=
|boiling point ref=
|boiling point comment=
|sublimation point K=
|sublimation point C=
|sublimation point F=
|sublimation point ref=
|sublimation point comment=
|density gplstp=
|density gplstp ref=
|density gplstp comment=
|density gpcm3nrt=
|density gpcm3nrt ref=
|density gpcm3nrt comment=
|density gpcm3nrt 2=
|density gpcm3nrt 2 ref=
|density gpcm3nrt 2 comment=
|density gpcm3nrt 3=
|density gpcm3nrt 3 ref=
|density gpcm3nrt 3 comment=
|density gpcm3mp=
|density gpcm3mp ref=
|density gpcm3mp comment=
|density gpcm3bp=
|density gpcm3bp ref=
|density gpcm3bp comment=
|molar volume=
|molar volume unit =
|molar volume ref=
|molar volume comment=
|triple point K=
|triple point kPa=
|triple point ref=
|triple point comment=
|triple point K 2=
|triple point kPa 2=
|triple point 2 ref=
|triple point 2 comment=
|critical point K=
|critical point MPa=
|critical point ref=
|critical point comment=
|heat fusion=
|heat fusion ref=
|heat fusion comment=
|heat fusion 2=
|heat fusion 2 ref=
|heat fusion 2 comment=
|heat vaporization=
|heat vaporization ref=
|heat vaporization comment=
|heat capacity=
|heat capacity ref=
|heat capacity comment=
|heat capacity 2=
|heat capacity 2 ref=
|heat capacity 2 comment=
|vapor pressure 1=
|vapor pressure 10=
|vapor pressure 100=
|vapor pressure 1 k=
|vapor pressure 10 k=
|vapor pressure 100 k=
|vapor pressure ref=
|vapor pressure comment=
|vapor pressure 1 2=
|vapor pressure 10 2=
|vapor pressure 100 2=
|vapor pressure 1 k 2=
|vapor pressure 10 k 2=
|vapor pressure 100 k 2=
|vapor pressure 2 ref=
|vapor pressure 2 comment=

|atomic properties comment=
|oxidation states=
|oxidation states ref=
|oxidation states comment=
|electronegativity=
|electronegativity ref=
|electronegativity comment=
|ionization energy 1=
|ionization energy 1 ref=
|ionization energy 1 comment=
|ionization energy 2=
|ionization energy 2 ref=
|ionization energy 2 comment=
|ionization energy 3=
|ionization energy 3 ref=
|ionization energy 3 comment=
|number of ionization energies=
|ionization energy ref=
|ionization energy comment=
|atomic radius=
|atomic radius ref=
|atomic radius comment=
|atomic radius calculated=
|atomic radius calculated ref=
|atomic radius calculated comment=
|covalent radius=
|covalent radius ref=
|covalent radius comment=
|Van der Waals radius=
|Van der Waals radius ref=
|Van der Waals radius comment=

|crystal structure=
|crystal structure prefix=
|crystal structure ref=
|crystal structure comment=
|crystal structure 2=
|crystal structure 2 prefix=
|crystal structure 2 ref=
|crystal structure 2 comment=
|speed of sound=
|speed of sound ref=
|speed of sound comment=
|speed of sound rod at 20=
|speed of sound rod at 20 ref=
|speed of sound rod at 20 comment=
|speed of sound rod at r.t.=
|speed of sound rod at r.t. ref=
|speed of sound rod at r.t. comment=
|thermal expansion=
|thermal expansion ref=
|thermal expansion comment=
|thermal expansion at 25=
|thermal expansion at 25 ref=
|thermal expansion at 25 comment=
|thermal conductivity=
|thermal conductivity ref=
|thermal conductivity comment=
|thermal conductivity 2=
|thermal conductivity 2 ref=
|thermal conductivity 2 comment=
|thermal diffusivity=
|thermal diffusivity ref=
|thermal diffusivity comment=
|electrical resistivity=
|electrical resistivity unit prefix=
|electrical resistivity ref=
|electrical resistivity comment=
|electrical resistivity at 0=
|electrical resistivity at 0 ref=
|electrical resistivity at 0 comment=
|electrical resistivity at 20=
|electrical resistivity at 20 ref=
|electrical resistivity at 20 comment=
|band gap=
|band gap ref=
|band gap comment=
|Curie point K=
|Curie point ref=
|Curie point comment=
|magnetic ordering=
|magnetic ordering ref=
|magnetic ordering comment=
|tensile strength=
|tensile strength ref=
|tensile strength comment=
|Young's modulus=
|Young's modulus ref=
|Young's modulus comment=
|Shear modulus=
|Shear modulus ref=
|Shear modulus comment=
|Bulk modulus=
|Bulk modulus ref=
|Bulk modulus comment=
|Poisson ratio=
|Poisson ratio ref=
|Poisson ratio comment=
|Mohs hardness=
|Mohs hardness ref=
|Mohs hardness comment=
|Mohs hardness 2=
|Mohs hardness 2 ref=
|Mohs hardness 2 comment=
|Vickers hardness=
|Vickers hardness ref=
|Vickers hardness comment=
|Brinell hardness=
|Brinell hardness ref=
|Brinell hardness comment=
|CAS number=
|CAS number ref=
|CAS number comment=

|naming=
|predicted by=
|prediction date ref=
|prediction date=
|discovered by=
|discovery date ref=
|discovery date=
|first isolation by=
|first isolation date ref=
|first isolation date=
|discovery and first isolation by=
|named by=
|named date ref=
|named date=
|history comment label=
|history comment=

|isotopes=
|isotopes comment=
|engvar=
}}
(Introduction)

==Properties==
===Chemical===

===Physical===

==Availability==
Delete this section if not applicable

==Isolation==
Delete this section if not applicable

==Projects==

==Handling==

===Safety===

===Storage===

===Disposal===

==References==
<references/>
===Relevant Sciencemadness threads===

@@ Line 20: / Line 20: @@
 |alt names=
 |allotropes=
-|appearance= Metallic
+|appearance= Metallic, silvery, glowing
 <!-- Periodic table -->
 |above= -
@@ Line 272: / Line 272: @@
 |engvar=
   }}
-'''Promethium''' is an extremely radioactive [[lanthanide]]. It is one of two classical elements lighter than [[bismuth]], with no stable isotopes, the other being [[technetium]]. It is not encountered in nature except for traces and is primarily synthesized in labs.
+'''Promethium''' ('''Pm''') is an extremely radioactive [[lanthanide]]. It is one of two classical elements lighter than [[bismuth]], with no stable isotopes, the other being [[technetium]]. It is not encountered in nature except for traces and is primarily synthesized in labs.
 ==Properties==
@@ Line 280: / Line 280: @@
 ===Physical===
 Promethium is a silvery-gray metal, which glows in dark. It readily oxidizes in air.
 ==Availability==
@@ Line 285: / Line 287: @@
 ==Isolation==
-To do
+While it's possible to reduce promethium from the fluorescent dye it's commonly available, one would need a very large amount of Pm dye, large enough that its radioactivity becomes a serious hazard. As such, it's not a good idea to isolate this metal, unless one has the setting to do this safely.
 ==Projects==

@@ Line 272: / Line 272: @@
 |engvar=
   }}
-Promethium is an extremely radioactive [[lanthanide]]. It is one of two elements with no stable isotopes before [[bismuth]], the other being [[technetium]].
+'''Promethium''' is an extremely radioactive [[lanthanide]]. It is one of two classical elements lighter than [[bismuth]], with no stable isotopes, the other being [[technetium]]. It is not encountered in nature except for traces and is primarily synthesized in labs.
 ==Properties==
@@ Line 279: / Line 279: @@
 ===Physical===
+Promethium is a silvery-gray metal, which glows in dark. It readily oxidizes in air.
 ==Availability==
@@ Line 289: / Line 289: @@
 ==Projects==
 *Element collection
 ==Handling==
 ===Safety===
-To do
+Promethium is highly radioactive and proper protection should be worn when handling the compound.
 ===Storage===
-To do
+In closed vials, kept in lead-lined boxes.
 ===Disposal===
 To do
 ==References==
 <references/>
 ===Relevant Sciencemadness threads===