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4. Identify the following elements and classify whether they are metals, nonmetals, or metalloids. Explain the reason for your choice. (Refer to your Pre-lab discussion or your textbook, pp. 132-133: Periodic Table of Elements)

Elements:
1. Hydrogen
2. Oxygen
3. Chlorine
4. Potassium
5. Fluorine
6. Manganese
7. Carbon
8. Zinc
9. Neon
10. Nitrogen
11. Silicon
12. Boron
13. Phosphorus
14. Sulfur
15. Iron
16. Copper
17. Argon
18. Xenon
19. Lithium
20. Calcium

Classes of Properties:
- Nonmetals: Poor conductors of heat and electricity (example)

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Final answer:

The classification of elements into metals, nonmetals, and metalloids based on their properties like conductivity was explained with examples for each element listed.


Explanation:

Metal, Nonmetal, or Metalloid classification:

  • Hydrogen: Nonmetal – Hydrogen is a nonmetal due to its low ionization energy and high electronegativity. It is also a poor conductor of heat and electricity.
  • Oxygen: Nonmetal – Oxygen is a nonmetal with similar properties to other nonmetals like being a poor conductor of heat and electricity.
  • Chlorine: Nonmetal – Chlorine falls under nonmetals due to its properties of poor heat and electricity conduction.
  • Potassium: Metal – Potassium is a metal exhibiting characteristics like malleability and conductivity of heat and electricity.
  • Fluorine: Nonmetal – Fluorine is a nonmetal showing poor conductivity of heat and electricity.
  • Manganese: Metal – Manganese is classified as a metal due to its conductivity and malleability.
  • Carbon: Nonmetal – Carbon is a nonmetal known for its poor electrical and heat conductivity.
  • Zinc: Metal – Zinc is a metal with properties of conductivity similar to other metals.
  • Neon: Nonmetal – Neon is a nonmetal due to its poor conductive properties.
  • Nitrogen: Nonmetal – Nitrogen is a nonmetal, lacking conductivity of heat and electricity.
  • Silicon: Metalloid – Silicon is a metalloid, displaying properties of both metals and nonmetals.
  • Boron: Metalloid – Boron is a metalloid with characteristics of both metals and nonmetals.
  • Phosphorus: Nonmetal – Phosphorus is a nonmetal with poor conductivity.
  • Sulfur: Nonmetal – Sulfur is a nonmetal exhibiting properties like poor conductivity.
  • Iron: Metal – Iron is a metal with high electrical and heat conductivity.
  • Copper: Metal – Copper is a metal with good conductivity.
  • Argon: Nonmetal – Argon is a nonmetal with poor conductivity.
  • Xenon: Nonmetal – Xenon is a nonmetal with weak conductive properties.
  • Lithium: Metal – Lithium is a metal with characteristics such as conductivity.
  • Calcium: Metal – Calcium is a metal featuring properties like conductivity.

Learn more about Classification of elements into metals, nonmetals, and metalloids here:

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