Chemistry · Classification of Elements and Periodicity in Properties

Arrange the following elements in increasing order of their metallic character: \( \text{Si}, \text{Be}, \text{Mg}, \text{Na}, \text{P} \).

1. \( \text{Si} < \text{P} < \text{Be} < \text{Mg} < \text{Na} \)
2. \( \text{Na} < \text{Mg} < \text{Be} < \text{Si} < \text{P} \)
3. \( \text{Be} < \text{Mg} < \text{Na} < \text{Si} < \text{P} \)
4. \( \text{P} < \text{Si} < \text{Be} < \text{Mg} < \text{Na} \)