This line starts at Boron (B) and goes down diagonally to include elements like Silicon (Si), Germanium (Ge), Arsenic (As), Antimony (Sb), Tellurium (Te), Polonium (Po), and Astatine (At).
Here's why it's called a stair-step line:
* Metals: Located to the left of the stair-step line, are generally shiny, malleable, ductile, and good conductors of heat and electricity.
* Nonmetals: Located to the right of the stair-step line, are generally dull, brittle, poor conductors of heat and electricity, and often exist as gases at room temperature.
Metalloids: The elements that lie along the stair-step line are called metalloids or semimetals. They have properties that are intermediate between metals and nonmetals. For example, Silicon is a metalloid that is used in semiconductors.
It's important to note that the stair-step line is not an absolute division. Some elements near the line have properties that blur the line between metals and nonmetals.
