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.
Amazon Jungle. The Amazon Jungle in southern Colombia is home to the largest tropical rain forest in the world. The region includes Isla de los Micos, or Monkey Island, home to a forest full of wildlife including apes.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.
Colombia (officially called Republic of Colombia), is a big country in South America. It is in the northwest part of that Continent and it has an area of 1.141.748 kmÂ² (440,839 sq mi).n 1819, Colombia, Venezuela, Ecuador and Panama declared independence from Spain, and formed a country called  Gran Colombia . Venezuela and Ecuador separated in 1830. Panama continued to be part of Colombia until 1903, at which point it proclaimed independence.