A. an ion
The atom gains a net electrical charge if the number of protons and electrons are not equal which makes it an ion.
Answer:
Atom
Explanation:
The smallest unit which maintains an element's properties is an atom.
The molecules of a liquid substance are closely packed together to each other. So as a result, liquids are denser than gases.
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What is the difference between the density of liquid and gas?</h3>
A mass of gas will have a much larger volume compared to the same mass of liquid. This is because it has a much lower density. The density of gaseous oxygen is 0.0014 g/cm3. Density is ρ=Mass Volume. We know that gas will uniformly occupy more space than liquid whatever volume is available to it. On the other hand, solids and liquids, are closely packed as compared to gas and are high-density materials where ρ is relatively constant.
So we can conclude that the molecules of a liquid substance are closely packed together with each other. So as a result, liquids are denser than gases.
Learn more about Density: brainly.com/question/1354972
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Benzene is used for pesticides and detergents. It is also used for other things besides these.
