Chemistry, 25.11.2020 18:50 helplessstudent3
An atom of an element has two electrons in the first energy level and five electrons in the second energy level. Write the electron configuration and name the element. How many unpaired electrons does an atom of this element have?
Answers: 2
Chemistry, 22.06.2019 22:30, darkshaders11
Is the idea of spontaneous generation supported by redi's experiment? justify your answer in 2-3 sentences?
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What must be in balance for temperatures to remain constant?
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An atom of an element has two electrons in the first energy level and five electrons in the second e...
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