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Salt: Science Lesson: Activity 3 of 3

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Elements on the periodic table can be classified into different families in many ways. One way to classify elements is to divide them into metals, non-metals, and metalloids. The color key shows which elements belong to each family.

  • Metal: shiny, malleable, good conductor of heat and electricity (Examples: copper, nickel, platinum)
  • Non-metal: brittle as a solid, poor conductor of heat and electricity compared to metals (Examples: carbon, sulfur, chlorine)
  • Metalloid: has mix of features from metals and non-metals (Examples: silicon, arsenic, antimony)


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According to the periodic table, is sodium a metal, a non-metal, or a metalloid?
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