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If the ionisation potential of an atom is 20V,its first excitation potetial will bw ( 1)5 (2) 10 (3) 15 (4) 20 |
| Answer» If the ionisation potential of an atom is 20V,its first excitation potetial will bw ( 1)5 (2) 10 (3) 15 (4) 20 | |