What can you predict about an element from its position on the periodic table?

What can you predict about an element from its position on the periodic table?
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Its position predicts several useful characteristics:1. The no. of valence electrons/the type of valence orbitals2. The nature of element3. Other Elements having similar chemistry4. rough idea of the ionization enthalpy, electronegativity, andother parametersand many more things
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