Intro to Atomic Structure BR 10/3-4

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Presentation transcript:

Intro to Atomic Structure BR 10/3-4 What are the 3 main parts of an atom?

F APE MAN!!!! 9 Atomic Number =Number of Protons Mass Number 18.9984 =Number of Electrons - Atomic Number = Number of Neutrons 18.9984

Let’s Practice… Element Name Symbol Atomic # Mass # Chlorine Cl 17 # of Protons # of Neutrons # of Electrons Chlorine Cl 17 35.45 Argon Ar 39.95 22

Atomic Structure

Nucleus

+ Proton + +

Neutrons

ORBITALS ORBITALS

- Electrons -

Subatomic Particles

Isotopes Same element Different number of neutrons Different mass # Ex C-12 and C-14