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There are answer on chrome
You can look at the number of valence electrons and look at the size of the molecule itself to determine which element in this certain group is shown on the model.
Answer:
Elements only contain one type of atoms while compounds contain two or more types of atoms.
Explanation:
An example of an element is sodium --> Na (only Na atoms)
An example of a compound can be water --> H2O (contain H and O atoms)
*But the particles within a compound are all the same.
It is called a Seismogram
