Radioactive carbon dating of fossils
Pro The half life of radioactive substances are empirically determined.
The ratio of the parent to daughter atoms can be used to determine an exact age given the assumptions that none of the original parent atoms have been eroded or lost during the time being calculated.
The nucleus contains protons (tiny particles each with a single positive electric charge) and neutrons (particles without any electric charge).
Orbiting around the nucleus are electrons (tiny particles each with a single electric charge).
to make it simple on you the difference is an isotope is stable.
a a radioactive isotope is not stable and usually has a half life. Like Carbon-12 6protons and 6 neutrons and Carbon-14 6protons and 8neutrons.
Radioactive dating gives hope for an objective empirical method of determining the age of fossils.
The isotopes 'decay' into a different substance by 3 methods ...The atoms in each chemical element may vary slightly in the numbers of neutrons within their nuclei.These slightly different atoms of the same chemical element are called isotopes of that element.they can emit alpha partices, or beta particles, or pure energy called gamma rays. It is not radio active If suppose one neutron is added then it becomes an isotope P-32.This is radio active Same way right from P-31 if one neutron is taken out then P-30 would result. These isotopes are said to be radio active isotopes.
Therefore, carbon has three isotopes, which are specified as carbon-12, carbon-13 and carbon-14 (figure 1). Comparison of stable and unstable atoms of the element carbon.