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Information × Registration Number 2111U001460, Article popup.category Thesis Title popup.author popup.publication 01-01-2011 popup.source_user Сумський державний університет popup.source http://essuir.sumdu.edu.ua/handle/123456789/13492 popup.publisher Видавництво СумДУ Description Hydrogen is the simplest element. An atom of hydrogen consists of only one proton and one electron. It's also the most plentiful element in the universe. Despite its simplicity and abundance, hydrogen doesn't occur naturally as a gas on the Earth - it's always combined with other elements. Water, for example, is a combination of hydrogen and oxygen (H2O). When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/13492 popup.nrat_date 2025-05-12 Close