Virtue ethics is based on the consequences of actions, whereas principle-based ethics is based on character traits. c. Virtue ethics is based on set of rules, whereas principle-based ethics is based on consequences of actions.
The atomic radius of a chemical element is a measure of the size of its atoms, usually the mean or typical distance from the center of the nucleus to the boundary of the surrounding cloud of electrons. Since the boundary is not a well-defined physical entity, there are various non-equivalent definitions of atomic radius.
R = nuclear radius in metres (m). r 0 = is the radius of a nucleon approx 1.3 fm. A = nucleon number. Nuclear Density. By assuming the nucleus to be a sphere we can calculate the density of the nucleus.e can then work out the closest distance of approach of the alpha particle to the nucleus. loss in kinetic energy E k = gain in potential energy by the field E p. These experiments show the nucleus must be smaller than about 10 -14 m.