प्रोमेथियम
promethiyam ek rasayanik tattv hai, jise Pm se pradarshit kiya jata hai. yah tattv avart sarani mean lenthenaid tattvoan ke sath mean rakha gaya hai.
- promethiyam ka paramanu kramaank 61 aur paramanu dravyaman [146.9151][1] (gra./mol) hota hai.
- rasayan vijnan mean promethiyam ka pratik Pm hai.
- sanyukt rajy amerika ke merimnaik, glaindenim aur k aauryel namak vaijnanikoan ne promethiyam ki khoj varsh 1945 mean ki thi.
- promethiyam ka galanaank 1042 (digri seantigred) tatha kvathanaank 3000 (digri seantigred) hota hai.
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tika tippani aur sandarbh
- ↑ sthir nyooklaids rahit tattv aur koshthak ki sankhya tattv ke adhikatam ayu yukt samasthanik ki dravyaman sankhya ko iangit karata hai, jaise [209]. kintu thoriyam, protॅktiniyam aur yooreniyam ke vishesh gun dharm, sthaliy samasthanik rachana ke hote haian, isalie paramanavik dravyaman ullikhit hai.
sanbandhit lekh
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| 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 | La | Ce | Pr | Nd | Pm | Sm | Eu | Gd | Tb | Dy | Ho | Er | Tm | Yb | Lu | Hf | Ta | W | Re | Os | Ir | Pt | Au | Hg | Tl | Pb | Bi | Po | At | Rn | ||||||||||
| Fr | Ra | Ac | Th | Pa | U | Np | Pu | Am | Cm | Bk | Cf | Es | Fm | Md | No | Lr | Rf | Db | Sg | Bh | Hs | Mt | Ds | Rg | Cn | Uut | Uuq | Uup | Lv | Uus | Uuo | ||||||||||
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