An atom of this element has shells and valence electrons.
(the element is hydrogen.)...
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Chemistry, 21.06.2019 22:30
Determine the wavelength of the light absorbed when an electron in a hydrogen atom makes a transition from an orbital in the n=3 level to an orbital in the n=7 level.
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What must happen before a body cell can begin mitotic cell division
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Identify and describe the three ways that mutations affect organisms.
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The valence of aluminum is +3, and the valence of the chlorine is -1. the formula fir the aluminum chloride is correctly written as
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