What fraction of tetravalent atom must be replaced with

Last updated: 6/7/2023

What fraction of tetravalent atom must be replaced with pentavalent atom so as to 10 2 m 3 increase its number density of about by a factor of 10000 density of tetravalent is 2 33 g cm molar mass is 28 1 g mol density of pentavalent is 4 28 g cm 3 molar mass is 17 3 g mol A B C skipped One in five million One in five hundred million One in five thousand billion One in five thousand million