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.
Bogota. Colombia's capital of Bogota is in the central part of the country. The city is situated in the Andes mountain chain and is surrounded by five rivers, including the Bogota River.Bogota is considered the educational and cultural center of Colombia.olombia's capital of Bogota is in the central part of the country. The city is situated in the Andes mountain chain and is surrounded by five rivers, including the Bogota River.
Caliâs cheerful nature is manifested in salsa, a Caribbean rhythm that is danced here among the sugarcane in its own unique way. In this city, nicknamed Branch of Heaven,â the peaks of Cristo Rey, the hill of the Three Crosses, and the hills of San Antonio jut upwards from the plains that make up most of Valle del Cauca. If you are interested to know more about Colombian cities meet Bogota the capital of Colombia.