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shahedalahmad2017
02.12.2020 •
Mathematics
4) Oxygen is an element that was discovered in 1772 by Carl Wilhem Scheele. One atom of oxygenhas 8 electrons, 8 protons and 8 neutrons. Calculate the mass, in kg, of the protons in oxygen. Show your working.
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Ответ:
i am not good at the elements
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Ответ:
Step-by-step explanation: