Calculate the energy and frequency of light required to excite an eϴ
in H- atom from first
energy level to 4th energy level?
CLASS 11
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سهثههققهاااااااااعنتظظندزك
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Carbohydrates (also called carbs) are a type of macronutrient found in certain foods and drinks. Sugars, starches and fiber are carbohydrates. Other macronutrients include fat and protein. Your body needs these macronutrients to stay healthy.
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