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The second phase, dubbed Project-75 (India) or P-75(I), was to be executed simultaneously alongside P-75, with both projects envisioned to deliver 18 SSKs by 2030. [9] However, financial constraints within the MoD led to P-75 being the only project sanctioned, with a target to build six submarines. [10]
There are 39 known isotopes and 17 nuclear isomers of tellurium (52 Te), with atomic masses that range from 104 to 142. These are listed in the table below. Naturally-occurring tellurium on Earth consists of eight isotopes. Two of these have been found to be radioactive: 128 Te and 130 Te undergo double beta decay with half-lives of, respectively, 2.2×10 24 (2.2 septillion) years (the longest ...