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What is meant by the half-life of a radioactive substance
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An atom of sodium-23 (atomic number = 11) has a positive charge of +1. give this information, how many electrons does it have? how many proteins and neutrons does this atom have
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What is the molar mass of potassium nitrate, kno3
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Chemistry, 22.06.2019 12:00, 1963038660
What are the first two quantum numbers for the electrons located in subshell 4d? what are the first three quantum numbers for the electrons located in subshell 2s? how many electrons can be held in a sublevel l = 3? how many electrons can be held in the energy level n = 4? how many electrons in an atom can share the quantum numbers n = 4 and l = 3?
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Chemistry, 22.06.2019 12:10, coastieltp58aeg
Building glycogen from glucose molecules is an example of
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What is meant by the half-life of a radioactive substance...
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