Bozeman Science Quantum Mechanical Model

What is the quantum mechanical model?

• A theoretical concept of what an atom looks like

• A model of the atom based on spectral data

• A model of the atom based on specific orbits

• A model of the atom based on Coulomb's Law

What is the uncertainty principle in relation to electrons?

• Electrons have a specific shape

• The act of light bouncing off an electron changes its momentum

• The act of light bouncing off an electron changes its location

• Electrons have specific orbits

What is an orbital in the quantum mechanical model?

• A cloud of probability where electrons sit

• A theoretical concept of electron behavior

• A shape of the electron's momentum

• A specific orbit followed by electrons

What determines the size of an orbital in the quantum mechanical model?

• Coulomb's Law

• Quantum numbers

• The shape of the orbital

• The uncertainty principle

What is the shape of the orbital represented by the quantum number l?

• Shape of the orbital

• Size of the orbital

• Spin of the orbital

• Orientation of the orbital

How many orientations can a p orbital have?

• Four

• Three

• Two

• One

What is the significance of the spin of electrons in the quantum mechanical model?

• It limits the number of electrons in an orbital

• It affects the orientation of the orbital

• It determines the shape of the orbital

• It determines the size of the orbital

What does Schrodinger's equation predict in the quantum mechanical model?

• The shape of the orbital

• The location of electrons

• The momentum of electrons

• The size of the orbital

What is the main advantage of the quantum mechanical model over the shell model?

• It is based on Coulomb's Law

• It accounts for the uncertainty of electrons

• It is simpler to understand

• It predicts specific orbits of electrons

How does the quantum mechanical model refine the classical shell model?

• By introducing specific orbits for electrons

• By accounting for the uncertainty of electrons and their spin

• By simplifying the concept of orbitals

• By ignoring the data from spectral analysis