Question

1. a student analyzes data showing the physical states of elements in period 3. which trend would the student most likely observe? all elements in period 3 are gases at room temperature due to their small atomic size. elements on the left side are solids, while elements on the right side are gases. all elements in period 3 are solids at room temperature due to strong metallic bonding. elements alternate between solid and gas phases in a regular pattern across the period.

Explanation:

In Period 3 of the periodic table, elements on the left - hand side (sodium, magnesium, aluminum) are metals and solids at room temperature. Elements on the right - hand side (phosphorus, sulfur, chlorine, argon) include non - metals which can be solids (phosphorus, sulfur), gases (chlorine, argon).

Answer:

Elements on the left side are solids, while elements on the right side can be gases.