selenous acids

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Selenium — (pronEng|səˈliniəm) is a chemical element with the atomic number 34, represented by the chemical symbol Se, an atomic mass of 78.96. It is a nonmetal, chemically related to sulfur and tellurium, and rarely occurs in its elemental state in nature … Wikipedia
Petr Zuman — (born January 1926) is a Czech chemist. Born and raised in Prague, the Second World War severely impacted Zuman and his family while he was a teenager. In 1939, when he was 13 years old, the Germans occupied Czechoslovakia and sent his father to… … Wikipedia

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