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I am a high school student . While studying the atomic structure a question raised in my mind. We know that an atom can have the highest limit of 7 bohr energy shells or principle energy shells ; K,L,M,N,O,P,Q respectively. My question is, can there exist any element that consists more than 7 energy shells having more electrons? Or , can there exist any element that has an 8th energy shell of R shell?

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That is certainly possible, and in fact very likely. Nuclear physics predicts an island of stable elements around an atomic number of 120 $^{[1]}$, with the two heavier of the three elements predicted to be most stable having an $\ce{8s^2}$$^{[2]}$ and an $\ce{8s^2 8p^1}$$^{[3]}$ configuration, respectively.

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  • $\begingroup$ Then that would be another milestone in the history of chemistry. Thank you for the help. $\endgroup$ – shiladitya basu Apr 18 '13 at 11:08

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