इरिडियम
iridiyam dhatuoan ke plaitinam samooh ka ek sadasy haian. iridiyam ka sanket Ir hai. sabase pahale teanna ne 1804 mean aausmiiridiyam namak mishran se isako prapt kiya. yah bahut hi kathor dhatu hai, lagabhag 2,4500 seantigred par pighalati hai aur isaka apekshik ghanatv 22.4 hai. isaka vishisht vidyutiy pratirodh 4.9 hai jo plaitinam ka lagabhag adha hai. isase tar, chadar ityadi banana b da hi kathin hai. rasayanik pratikriya mean yah dhatuoan mean sabase adhik akriyashil hai, jahaan tak ki amlaraj bhi sadharan tap par isapar kriya karane mean asaphal rahata hai.
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tika tippani aur sandarbh
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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varnamala kramanusar lekh khoj
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