Question

1. explain the significance of the bold staircase line on the periodic table (figure 11). k/u

Explanation:

The bold staircase line on the periodic table separates metals from non - metals. Elements to the left of the line are metals, which are typically good conductors of heat and electricity, malleable, and ductile. Elements to the right are non - metals, which are generally poor conductors, brittle, and lack metallic luster. Elements that touch the line are metalloids, which have properties intermediate between metals and non - metals.

Answer:

The bold staircase line on the periodic table separates metals from non - metals. Elements to the left are metals, to the right are non - metals, and those touching the line are metalloids.