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what should be the energy in the first excited state of beryllium^3+?? PPS HELP ANSWER WITH EXPLAINATION |
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Answer» First understand that we can only calculate energy of single ELECTRON species (charged atom) .As you know Be3+ has one electron only . we can calculate energy in n th orbit = -13.6 ×Z2/n2 where Z is atomic number and n is the number of the orbit . first excited state MEANS 2nd orbit .Z of Beryllium is 4. so energy =-13.6 ×16/4 = -54.4 EV sorry I didn't mention the unit earlier please MARK me as brainliest |
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