Atom - Basic building block of ordinary matter, Protons - Positively charged subatomic particles, Neutrons - No electrical charge, Electrons - Negatively charged subatomic particles, Characteristics of Atoms - Basic unit of a chemical element. Consists of 3 basic parts: protons, neutrons, and electrons, Characteristics of Protons - Located inside the nucleus, included in the atom's mass, atomic number = number of protons, Characteristics of Neutrons - Located inside the nucleus, included in the atom's mass, Characteristics of Electrons - Located outside the nucleus, does not contribute to the atom's mass, What number is pointed to the Atomic Number - #1, What number is pointed to the Elements Name - #2, What number is pointing to the Elements Symbol - #3 , Which number is pointed to the Atomic Mass - #4, What does the Atomic Number tell us - Tells us the number of protons, What does The Elements Name tell us - The name of the Element, What is the Elements Symbol - One or two letter abbreviation, What does the Atomic Mass tell us - How much one atom weighs (The number of neutrons + protons),

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