객관식
Which of the following elements is classified as a metalloid on the periodic table?
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4. Atoms and Elements
Periodic Table: Classifications
객관식
Which element is commonly used for the shiny trim and plating on cars due to its high luster and corrosion resistance?
A
Neon (Ne)
B
Sulfur (S)
C
Chromium (Cr)
D
Sodium (Na)
검증된 단계별 안내1
Identify the key properties required for the element used in shiny trim and plating on cars: high luster (a shiny appearance) and corrosion resistance (ability to resist rust and degradation).
Recall that Neon (Ne) is a noble gas and chemically inert, so it is not used for plating or trim.
Consider Sulfur (S), which is a non-metal and tends to form compounds rather than metallic coatings; it is not suitable for shiny plating.
Sodium (Na) is a highly reactive metal that tarnishes quickly and is not used for plating or trim on cars.
Chromium (Cr) is a transition metal known for its bright, shiny finish and excellent corrosion resistance, making it the common choice for car trim and plating.
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