WHAT ARE RADIOISOTOPES ? Many of the chemical elements have a number of isotopes. The isotopes of an element have the same number of protons in their atoms (atomic number) but different masses due to different numbers of neutrons. In an atom in the neutral state, the number of external electrons also equals the atomic number.
2. Plaza Botero, Medellin. Fernando Botero is Colombiaâs major gift to the art world, and one of Medellinâs most famous sons. In homage to his work, Medellin houses âPlaza Botero': a selection of 23 Botero sculptures in his idiosyncratic style.his isnât to say Colombia doesnât have essential places or sights to visit because it does, and in abundance. Thereâs so much to see here that the mind boggles when trying to come up with shorter itineraries, but therein lies the problem. If you can only go to one place, itâs difficult to decide where that place is.
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