Which if the following is TRUE of non-metals?Athey are generally solids at room temperature Bthey are all non-conductors of electricity Cthey generally have low melting pointsDthey have high density
Question
Which if the following is TRUE of non-metals?Athey are generally solids at room temperature Bthey are all non-conductors of electricity Cthey generally have low melting pointsDthey have high density
Solution
The statement that is TRUE of non-metals is C: they generally have low melting points.
Here's why:
A. Non-metals can be solids, liquids, or gases at room temperature. For example, bromine is a liquid and oxygen is a gas.
B. While many non-metals are poor conductors of electricity, there are exceptions. For example, graphite, a form of carbon, is a good conductor of electricity.
C. Non-metals generally do have low melting points. This is a characteristic property of non-metals.
D. Non-metals do not generally have high densities. This is more characteristic of metals.
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