Atomic Structure

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Atomic Structure

• I. Subatomic Particles

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WHATS IN AN ATOM?
?

• THREE MAIN PARTICLES
• PROTONS
• NEUTRONS
• ELECTRONS

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Subatomic Particles
ATOM
NUCLEUS
Electron Cloud
PROTONS
NEUTRONS
Electrons
POSITIVE CHARGE
NEUTRAL CHARGE
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HOW DO MASSES COMPARE ?

• MEASURED IN AMUs. (this stands for atomic mass
  units)
• 1 AMU the mass of 1 proton or 1 neutron
• Proton 1 amu, or 1.674 x 10 -24 grams
• Neutron 1 amu or 1.675 x 10-24 grams
• Electrons 0 amu or 9.11 x 10-28 grams
• Comparatively, electrons have 1/1836 the mass of
  either the proton or neutron

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Subatomic Particles

• Quarks
• component of protons neutrons
• 6 types

• 3 quarks 1 proton or 1 neutron