Identify the incorrect statement from the following :

Core Logic

Metallic character is inversely proportional to electronegativity and ionization enthalpy. On moving left to right in a period, metallic character decreases (because non-metallic character increases). On moving top to bottom in a group, metallic character increases. Na, Mg, Si, P are in the 3rd period. Their metallic character decreases as: Na > Mg > Si > P$Na > Mg > Si > P$. Be is in the 2nd period, directly above Mg. Therefore, Mg is more metallic than Be (Mg > Be$Mg > Be$). Also, Be (Group 2) is considerably more metallic than Si (Group 14 metalloid). So the combined increasing order is: P < Si < Be < Mg < Na$P < Si < Be < Mg < Na$.

Step 1: Final Conclusion

The correct increasing order is P < Si < Be < Mg < Na$\mathrm{P} < \mathrm{Si} < \mathrm{Be} < \mathrm{Mg} < \mathrm{Na}$.

Pattern Recognition

Metals are on the far left. Non-metals are on the far right. Group 1 elements (Na) are the most metallic. Rightmost elements (P) are the least metallic.

Chapter Mix

Class 11 Chemistry: Classification of Elements and Periodicity in Properties