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| 1. |
Anomalies of mendleev periodic table.Which were renamed by modern periodic law |
| Answer» 1) POSITION OF ISOTOPES :since the isotopes of the same elements have the same atomic number, they are given the same place in the table.2) POSITION OF RARE EARTHS:These elements are separately placed at the bottom of table . similarly Acton elements ( which were discovered after Mendeleev ) are also placed at the bottom of the periodic table.3) ANOMALOUS PAIRS.the arrangement according to the atomic number show that their placements are correct. | |