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.
Ciudad Perdida Archaelological Park (Colombia.travel), also known as Teyuna, is on the Buritaca River in the Sierra Nevada de Santa Marta mountain range. Ciudad Perdida, which means lost city, is not easy to get to but visitors can enjoy the beauty of exotic forests, waterfalls and hanging bridges on the way.ierradentro Archaeological Park. Tierradentro Archaeological Park (colombia.travel) is in a mountainous region in southwest Colombia's Department of Cauca. A popular archaeological site, Tierradentro includes stone statues and underground tombs that reach 29 feet deep.
Independence Day in Colombia is a national holiday and the people donât work on this day. Celebrations of this day include official celebrations such as military parades in major cities, speeches by political leaders, flag hoisting, etc.Apart from that, this is a day celebrated with great enthusiasm by the citizens.ndependence Day is celebrated in many countries of the world, commemorating the anniversary of a countryâs liberation from its colonial rulers, or the end of a military occupation and the assumption of independent statehood by the country.