How many electrons in an atom with atomic mass 105 can have n+l=8

1.	How many electrons in an atom with atomic mass 105 can have n+l=8
Answer» TOTAL No of ELECTRON = 105 The element is dubnium The outhermost shell is 5f14,6d3,7s25f14,6d3,7s2 in case of 5f n+l=5+3=8 = 14 ELECTRONS for 6d 6+2 = 8 = 3 electrons Hence total NUMBER of electrons is 17

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