How many 13C carbon NMR signals will the following compounds show? A = 5, B = 4, C = 7, D = 3 A = 5, B = 4, C = 7, D = 4 A = 4, B = 6, C = 5, D = 7 A = 5, B = 4, C = 6, D = 5 A = 5, B = 7, C = 7, D = 3

Is there an image with it

The correct answer is "false"

Radon-222 or rn-222 has a half-life of 3.82 days. to determine the fraction of an original sample of rn-222 that remains unchanged after 7.646 days, we calculate the amount of rn-222 remaining after 7.646 days and divide it with the original amount. using 1 gram as a basis and using half-life calculation methods, we can determine that  0.249 or 0.25  grams of rn-222 will remain, and thus the fraction remaining is 0.25 or 1/4.