Problem: A molecule is two or more atoms that are bonded together. For instance, oxygen is rarely found as just an O atom, but instead is found as two atoms bonded together in one molecule, O2. Both O and O2 are elements because they are composed of only one type of element. A compound is composed of two different types of elements. Can you have an atom of a compound like you can an element, or can you only have a molecule of a compound?

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Some elements exist as monoatomic elements such as Ne, Pb, Al, and C.

Some elements exist as polyatomic molecules such as P4, S8, N2, and O2,

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A molecule is two or more atoms that are bonded together. For instance, oxygen is rarely found as just an O atom, but instead is found as two atoms bonded together in one molecule, O2. Both O and O2 are elements because they are composed of only one type of element. A compound is composed of two different types of elements. Can you have an atom of a compound like you can an element, or can you only have a molecule of a compound?

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Periodic Table: Elemental Forms concept. You can view video lessons to learn Periodic Table: Elemental Forms. Or if you need more Periodic Table: Elemental Forms practice, you can also practice Periodic Table: Elemental Forms practice problems.