Question
__ are located to the left of the stair case on the Periodic Table while __ are located to the right.
Answer
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Ellie
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Answer
Metals are located to the left of the staircase on the Periodic Table while nonmetals are located to the right.
Explanation
The question pertains to the layout of the Periodic Table, specifically the position of elements in relation to the 'staircase,' which is a diagonal line separating metals from nonmetals. Elements to the left of this staircase are typically metals. Metals are known for their conductive properties, malleability, and luster. On the other hand, elements to the right of the staircase are nonmetals. Nonmetals are characterized by their poor conductivity, lack of malleability (they are often brittle in solid form), and lack of luster. This demarcation is a fundamental concept in chemistry as it helps categorize elements based on their physical and chemical properties. The staircase line often starts at Boron (B, atomic number 5) and extends down to Astatine (At, atomic number 85). The elements immediately adjacent to the staircase, which display properties of both metals and nonmetals, are called metalloids or semimetals.