What's an atom?

​1) Protons- Positively Charged Particles

​2) Neutrons- No charge (Neutral)

​3) Electrons- Negatively Charged Particles

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​The center of an atom is the NUCLEUS. Here is where you find protons and neutrons. They are more massive than electrons. Electrons are found swirling around the nucleus in energy shells.

• ​YES!!

• ​Some atoms have different numbers of protons, neutrons and electrons!

​Each element has a different number of protons and electrons!

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​Important: Most of the time the number of protons and electrons in an atom are equal to make a neutral atom.

• ​An element is a pure substance made of only one type of atom

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• ​For example, Gold is an element and it is only made of gold atoms.

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• ​Each gold atom has 79 protons and 79 electrons.