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To many, interracial relationships are now almost a non-issue; just love whomever you want to love.To date outside of your race is no longer the controversial decision it once was.For example, U-238 is an ustable isotope of uranium that has 92 protons and 156 neutrons in the nucleus of each atom.Through a series of changes within the nucleus, it emits several particles, ending up with 82 protons and 124 neutrons.Learn more, including about available controls: Cookies Policy.In 2012, 15.1 percent of new marriages were interracial.
If there are too many neutrons, the nucleus has the potential to become unstable.
One half-life is the time it takes for half of the atoms present within a sample to decay.
For instance, there is always a small chance that each of the nuclei of U-238 will suddenly decay.
Radioactive isotopes have unstable atomic nuclei that have a tendency to change, or decay, over time.
The starting form of the element is called the parent isotope and the form that it changes into is called the daughter isotope.