Arrange in the order of their decreasing metallic character

• GC Periodic Classification

Arrange the following elements in the order of their decreasing metallic character
Na, Si, Cl, Mg, Al

1. Cl > Si > Al > Mg > Na
2. Na > Mg > Al > Si > Cl
3. Na > Al > Mg > Cl > Si
4. Al > Na> Si > Ca > Mg

Answer

As we move from left to right in periodic table, metallic characters decreases and non-metallic characters increases. Here Na, Si, Cl, Mg, Al belong to same period so we have to check their position in period.

The correct option is B.