ATOMIC THEORY

Subatomic particles with a negative charge

• Electrons

• Neutrons

• Protons

• Quarks

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NGSS.MS-PS2-3

subatomic particles found on the outermost shell & responsible for the atom's reactivity

• neutrons
• valence electrons
• isotopes
• ions

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

Subatomic particles with a positive charge

• neutrons
• atomic mass
• protons
• isotopes

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NGSS.HS-PS1-8

The smallest particle of an element that shows all the properties of that element.

• Subatomic Particles
• Atom
• Quarks
• Gluons

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NGSS.MS-PS1-1

Where electrons are likely to be found as they travel around the nucleus

• Nucleus
• Electron Cloud
• Within a Proton
• Within a Neutron

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NGSS.MS-PS1-1

A tiny but very dense, positively charged portion of the atom that holds most of the atomic mass

• Electron Shells
• Orbitals
• Electron Cloud
• Nucleus

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NGSS.HS-PS1-8

Discovered the nucleus of the atom through the Gold Foil Experiment

• Rutherford
• Chadwick
• Thomson
• Dalton

Proposed the Modern Electron Cloud Model of the atom

• Schrodinger & Heisenberg
• Dalton
• Chadwick
• Rutherford

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NGSS.MS-PS1-1

Discovered the electron within the atom

• Thomson
• Chadwick 
• Schrodinger & Heisenberg
• Dalton

Created the Planetary Model of the atom

• Bohr
• Dalton
• Rutherford
• Chadwick