Change: same time as melting point931°C,1708°FPhysical state: physicalPhysicalDensity:7.3g/ccMy Home(Body, Planet, Universe)HumanNoneUniverseNoneSun only 0.005I am Promethium! My Compounds(My Friends!)Promethium (III) ChlorideFormula:Pm1Cl3Promethium (III) BromideFormula:Pm1Br3Promethium (III) OxideFormula:Pm2O3My Story-I was discovered   View changes from previous version. (Word count: 183)

Change: There were only format changes (bold, italics, etc.) in this version. See this version for details. (Word count: 184)

Change: 1945--Named from Prometheus who stole the fire of the sky and gave it to mankindMy Jobs-Shows promise as a portable X-ray unit-Possibly useful as a heat source to provide auxilliary power for space probes and satellites-Thickness gauges-Used to convert light into electrical current   View changes from previous version. (Word count: 183)

Change: Density:7.3g/ccMy Home(Body, Planet, Universe)HumanNoneUniverseNoneSun only 0.005I am Promethium! My Compounds(My Friends!)Promethium (III) ChlorideFormula:Pm1Cl3Promethium (III) BromideFormula:Pm1Br3Promethium (III) OxideFormula:Pm2O3My Story-I was discovered by 3 people( J. A. Marinsky, Lawrence Glendenin, Charles D. Coryell)-I   View changes from previous version. (Word count: 166)

Change: I have 145 stable isotopes I have 9 radiotopes, with a living range from 2 hours to 17 yearsMy ElectronsElectron configuration:[Xe].4f5.6s2My shell structure is 2.8.18.23.8.2My Physical and Chemical PropertiesBoil at 3512°C, 6354°FFreezing point: same time as melting pointPhysical state: physicalMy Home   View changes from previous version. (Word count: 162)

Change: noneNoneUniversenoneNoneSun only 0.005I am Promethium! My Compounds(My Friends!)Promethium (III) ChlorideFormula:Pm1Cl3Promethium (III) BromideFormula:Pm1Br3Promethium (III) OxideFormula:Pm2O3My StoryMy Jobs-shows promise as a portable X-ray unit-possibly useful as a heat source   View changes from previous version. (Word count: 129)

Change: There were only format changes (bold, italics, etc.) in this version. See this version for details. (Word count: 128)

Change: Chemical PropertiesBoil at 3512°C, 6354°FFreezing point: same time as melting pointPhysical state: physicalMy Home(Body, Planet, Universe)HumannoneUniversenoneSun 0.005I am Promethium! My Compounds(My Friends!)Promethium (III) ChlorideFormula:Pm1Cl3Promethium (III) BromideFormula:Pm1Br3Promethium (III) OxideFormula:Pm2O3My StoryMy Jobs   View changes from previous version. (Word count: 97)

Change: is 2.8.18.23.8.2My Physical and Chemical PropertiesBoil at 3512°C, 6354°FFreezing point: same time as melting pointPhysical state: physicalMy Home(Body, Planet, Universe)I am Promethium! My Compounds(My Friends!)Promethium (III) ChlorideFormula:Pm1Cl3Promethium (III) BromideFormula:Pm1Br3Promethium (III) OxideFormula:Pm2O3My StoryMy Jobs   View changes from previous version. (Word count: 90)

Change:  yearsMy ElectronsElectron configuration:[Xe].4f5.6s2My shell structure is 2.8.18.23.8.2My Physical and Chemical PropertiesBoil at 3512°C, 6354°FFreezing point ispoint: same time as melting pointPhysical state isstate: physicalMy Home(Body, Planet, Universe)I am Promethium! My Compounds(My Friends!)My StoryMy Jobs   View changes from previous version. (Word count: 75)