A source contains two phosphorus radionuclei `._15^32P (T_(1//2) =14.3 d)` and `._15^33P (T_(1//2) = 25.3 d)`. Initially, 10% of the decay come from `._15^33P`. How long one must wait until 90% comes from it?

A source contains two phosphorous radio nuclides "_15^32P (T_(1/2) = 14.3d) and "_15^33P (T_(1/2) = 25.3d) . Initially, 10% of the decays come from "_15^33P . How long one must wait until 90% do so?

A source contains two phosphorus radio nuclides ""_(15)^(32)P (T_(1//2) = 14.3 d) and ""_(15)^(33)P(T_(1//2) = 25.3 d) . Initially , 10% of the decay come from ""_(15)^(33)P . How long one must wait until 90% do so?

A source contains two phosphorous radio nuclides ""_(15)^(32)P (T_(1//2) = 14.3d) and ""_(15)^(33)P(T_(1//2) = 25.3d) . Initially, 10% of the decays come from ""_(15)^(33)P . How long one must wait until 90% do so?

A source contains two phosphorous radio nuclides ""_(15)^(32)P (T_(1//2) = 14.3d) and ""_(15)^(33)P(T_(1//2) = 25.3d) . Initially, 10% of the decays come from ""_(15)^(33)P . How long one must wait until 90% do so?

A souree contains two phosphorus radio nuclides ._(15)^(33)P (T_(1//2)=14.3d) and ._(15)^(32)P (T_(1//2)=25.3d) . Initially, 10% of the decays come from ._(15)^(33)P . How long must one wait unit 90% do so ?

A source contains two phosphorus radionuclides ._(15)P^(35) (T_(1//2)=14.3"days") and ._(15)P^(33) (T_(1//2)=25.3"days") . Initially, 10% of the decays come from ._(15)P^(35) . How long one must wait until 90% do so?

A source contains two phosphorus radionuclides ._(15)P^(35) (T_(1//2)=14.3"days") and ._(15)P^(33) (T_(1//2)=25.3"days") . Initially, 10% of the decays come form ._(15)P^(35) . How long one must wait until 90% do so?