Development of the Quantum Mechanical Model + Vocab (PreIB)

Define "quantized"

• The electron's mass is very small. 
• The electron is actually a wave.
• The position & momentum of the electron cannot be known at the same time. 
• The electron is limited to certain positions in the atom.

"Energy is quantized." 

• Planck
• Heisenberg
• de Broglie
• Schrodinger

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NGSS.HS-PS4-3

"wave theory"

• Planck
• Heisenberg
• de Broglie
• Schrodinger

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NGSS.HS-PS4-3

NGSS.HS-PS4-5

"Electrons have particle and wave-like properties."

• Planck
• Heisenberg
• de Broglie
• Schrodinger

Tags

NGSS.HS-PS4-3

created an equation to treat the electron as a wave

• Planck
• Heisenberg
• de Broglie
• Schrodinger

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NGSS.HS-PS4-1

NGSS.HS-PS4-3

Why are we not allowed to know the position and momentum of the electron? 

• the size of the nucleus
• the electron's mass is too small
• the electron behaves like a wave
• it moves too fast

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NGSS.HS-PS4-3

The position & momentum of the electron cannot be known at the same time. 

• Planck
• Heisenberg
• de Broglie
• Schrodinger

Why do we not use Bohr's planetary model today?

• it is too specific; we are not allowed to know the electron's specific location
• it represented the nucleus far too largely
• it is too vague; we have more specific information to use now
• it placed the electrons too close to the nucleus

No two elements have the same line spectrum. 

• True
• False

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NGSS.HS-PS1-1

How is the Quantum Mechanical Model different from Bohr's planetary model?

• The QMM shows the probability of the electron's location.
• The planetary model shows the probability of the electron's location.
• The QMM shows the exact location of the electron. 
• The QMM does not include a nucleus.