Answered

Person A found an unknown substance with the following properties:

1) The substance did not conduct electricity.

2) The substance is very brittle.

3) The substance does not reflect light very well.



This substance is likely to be a:

Ametal
Bnonmetal
Cmetalloid

Verified Answer :

Final answer:

The unknown substance is likely a nonmetal due to its properties, including lack of electrical conductivity, brittleness, and poor light reflection. Nonmetals typically share these traits, distinguishing them from metals and metalloids.


Explanation:

Identification of the Unknown Substance

Based on the properties observed by Person A, the unknown substance is likely to be a nonmetal. Here are the reasons supporting this conclusion:

  1. Electrical Conductivity: The substance does not conduct electricity, which is typical for nonmetals. Nonmetals generally lack the free electrons necessary to conduct electricity, unlike metals that are good conductors.
  2. Brittleness: The fact that the substance is very brittle aligns with characteristics of many nonmetals. For example, elemental sulfur and phosphorus are known to be brittle.
  3. Light Reflection: The poor reflection of light indicates that the substance is not metallic. Metals typically have a shiny appearance due to their ability to reflect light, whereas nonmetals often have a dull or non-reflective surface.

In summary, the properties observed—lack of electrical conductivity, brittleness, and low light reflection—are characteristic of nonmetals.


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https://brainly.com/question/51194780


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