Elements and Compounds. 1  Element-An element is a substance composed of the same type of atoms (e.g. gold Au, oxygen O 2). 2  Compound-A compound is a substance made of more than one type of atom (e.g. water H 2 O, carbon dioxide CO 2).
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Regarding England, Scotland and Wales, though considered individual countries, they are all a part of the United Kingdom (UK), a European country, and therefore included within the United Kingdom on the list below.Note: South Sudan is the planet's newest country, which brings Africa's country to a total of 54.egarding England, Scotland and Wales, though considered individual countries, they are all a part of the United Kingdom (UK), a European country, and therefore included within the United Kingdom on the list below. Note: South Sudan is the planet's newest country, which brings Africa's country to a total of 54.