90 out of 142 is 63.38%
The percentage of 72 out of 142 is approximately 50.7%.
232Th has 142 neutrons and 90 protons and electrons.
percentage = 71%% rate:= 142/200 * 100%= 0.71 * 100%= 71%
13.3802817%
11.98%
71 is what percent of 142:= 71 / 142= 0.5Converting the decimal to a percentage: 0.5 * 100 = 50%
142 / 197 = 0.720812Converting decimal to a percentage: 0.720812 * 100 = 72.08%
Thorium, or Th, has an atomic number of 90. That means that every atom of thorium has 90 protons. The only naturally abundant isotope of thorium is 232Th, and so therefore it has 232 - 90 = 142 neutrons.
percentage of 90 out of 100 = 90%% rate:= 90/100 * 100%= 90%
1.41%
0.9 as a percentage is 90%.
9 as a percentage of 90 is 10%