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How do you distinguish between atoms and molecules?

Answer 1

Mateo Aguilar

An atom is the smallest part of an element. A molecule consists of two or more atoms.

Atoms

For example, helium consists of only #"He"# atoms.

They are the smallest part of helium that can exist and still be considered helium.

Molecules

Substances that contain more than one atom are called molecules.

Some common examples are hydrogen (#"H"_2#), oxygen (#"O"_2#), nitrogen (#"N"_2#), and chlorine (#"Cl"_2#).

If the molecules consist of only one type of atom, we call them elements.

Other molecules are nitrogen monoxide (#"NO"#), water (#"H"_2"O"#), nitrogen dioxide (#"NO"_2#), and carbon dioxide (#"CO"_2#).

Molecules that consist of more than one type of atom are called compounds.

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Answer 2

Natalie Anton

Atoms are the basic building blocks of matter, consisting of a nucleus composed of protons and neutrons, surrounded by electrons. Molecules are made up of two or more atoms chemically bonded together. In summary, atoms are the individual units, while molecules are groups of atoms bonded together.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.