Chapter 1.6: Quantum or Wave Mechanics Flashcards
• The value of ψ2 is proportional to?
• The value of ψ2 is proportional to the probability of finding an electron at a given point in space
Define quantum mechanics (wave mechanics)
the branch of science that studies the interaction of matter and radiation
Define node
a point in space where the wave function is zero
Where do phase changes occur?
at the nodes
What is a nodal plane?
• A nodal plane is any plane perpendicular to the direction of propagation that runs through a node
Describe the shape of s orbitals
o All s orbitals have the shape of a sphere, with the center at the nucleus
What is the sign of the wave function at particular coordinates in space, either plus or minus?
phasing
Define phasing
the sign of the wave function at particular coordinates in space, either plus or minus
What is a point in space where the wave function is zero?
node
What is the branch of science that studies the interaction of matter and radiation?
quantum mechanics (wave mechanics)
Describe the shape of p orbitals
o Each 2p orbital consist of two lobes arranged in a straight line with the nucleus in the middle
What is a solution to a set of equations that defines the energy of an electron in an atom and the region of space it may occupy (ψ)?
wave function
What is a wave equation?
o The mathematical equation that describes a wave is called a wave equation
Define wave functions
a solution to a set of equations that defines the energy of an electron in an atom and the region of space it may occupy (ψ)
How do waves interact?
• Waves interact constructively (adding) or destructively (subtracting/cancel)
o If you add X wave equations (orbitals) you end up with X new wave equations (orbitals)
