Quantum Theory Flashcards

0
Q

Angular Momentum Quantum Number ( l )

A

Tells shape of the orbitals

Has values from 0 to n-1

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1
Q

n

A

Principal Quantum number. Correlates to distance from nucleus(Energy Level)

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2
Q

Magnetic Quantum Number (ml)

A

Describes orientation of the orbitals in space

Has values from -l to +l

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3
Q

Spin Quantum Number

A

Either -1/2 or +1/2

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4
Q

Pauli Exclusion Principle

A

No two electrons in the same atom can have the same four quantum numbers. If in the same orbital, they differ in their spin number.

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5
Q

Heisenberg Uncertainty Principle

A

It’s impossible to know both the momentum and position of a particle at the same time.

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6
Q

Who created the 4 Quantum Numbers?

A

Schrödinger

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7
Q

Quanta

A

Discreet Amounts of energy releases by atoms and molecules

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8
Q

What did Louis do Broglie do?

A

Created an equation to explain the wavelike nature of electrons.
(Wavelength)=(6.63x10^-34 J/sec)
————–——–
(mass)(moving velocity)

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9
Q

Hund’s Rule

A

Place one electron in each orbital before placing a second one(with an opposite spin) in there

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10
Q

Aufbau Principle

A

As protons are added one by one to the nucleus to build up the elements, electrons are similarly added to atomic orbitals.

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11
Q

Exceptions to electronic configurations

A

Cu(4s1 3d10) &

Cr (4s1 3d5)

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