samasthaanik

bhautiki se sambandhit yeh lekh ek aadhaar hai. aap ise badhaakar vikipeediya ki sahaayata kar sakte hain. the va b yeh lekh vikipriyojana bhautiki ka hissa hai.

samasthaanik (angreji:Isotope):- ek hi tatv ke parmaanu jinki parmaanu sankhya samaan hoti hain parantu bhaar alag-alag hota hai samasthaanik kahe jaate hain.