Answer :
Final answer:
The elements on the left side of the stair-step line in the Periodic Table are largely metals, which typically lose electrons during reactions. Separating metals from nonmetals are the metalloids, exhibiting properties of both. Nonmetals are found on the upper right.
Explanation:
The elements that are located on the left side of the stair-step line in the Periodic Table are primarily metals. These include the representative metals and the transition and inner transition metals. This area of the periodic table is comprised of metals from group 1 and group 2, known as the alkali and alkaline earth metals respectively. Metals, recognizable by their shiny appearance, tend to lose electrons during chemical reactions.
Separating metals from nonmetals are the metalloids, which include elements like boron, silicon, germanium, arsenic, antimony, and tellurium. Metalloids exhibit properties of both metals and nonmetals and they are located along the stair-step line.
On the upper right are the nonmetals, including gases and elements important in biological systems, which behave quite differently from metals.
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