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5 Written Questions

5 Multiple Choice Questions

  1. occurs because electrons move freely among a metal's positively charged ions and explains properties such as ductility and the ability to conduct electricity
  2. element, such as radium, whose nucleus breaks down and emits particles and energy
  3. element that usually is a gas or brittle solid at room temperature, is not malleable or ductile, is a poor conductor of heat and electricity, and typically is not shiny
  4. elements in Group 3-12
  5. different forms of the same element having different molecular structures

4 True/False Questions

  1. diatomic moleculea molecule that consists of two atoms of the same element

          

  2. saltcompound formed when negative ions from an acid combine with positive ions from a base

          

  3. semiconductorelement that usually is a gas or brittle solid at room temperature, is not malleable or ductile, is a poor conductor of heat and electricity, and typically is not shiny

          

  4. malleableability of metals and alloys to be rolled or hamered into thin sheets

          

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