Answer:
21121.58 grams
Step-by-step explanation:
Given, 9.96 times 10 to the power of 26 atoms of tellurium
Convert atoms into moles of tellurium,
As we know, 1 mol= 6.02 *10 to the power of 23 atoms
Hence, 9.96 *10 to the power of 26/ 6.02 *10 to the power of 23= 1654 moles of tellurium
Now, mass= molar mass*moles
As we know, tellurium has a molar mass of 127.6000 g/mol
Mass= 1654 *1277 g/mol
= 21121.58