Final answer:
Metals are elements that exhibit certain characteristics such as being shiny, malleable, and good conductors of heat and electricity. Examples of metals include carbon, phosphorus, sulfur, and sodium.
Step-by-step explanation:
Metals are a type of element that are typically shiny, malleable, and good conductors of heat and electricity. Examples of metals include carbon (C), phosphorus (P), and sulfur (S). However, sodium (Na) is the correct answer choice as it is a common example of a metal.
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