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| 1. |
How many nucleons are present in an atom of Nobelium, 254No 102 ? How many electrons are present in the atom ? How many nucleons may be considered as neutrons ? |
| Answer» MASS no. =no. of PROTONS+ no. of NEUTRONS No. of NUCLEONS= no. of protons+no. of neutrons THEREFORE, Mass no.= 254Explanation: | |