Honors - Quantum Mechanical Model of the Atom

What is the maximum number of orientations in space for a 2p electron?

• 1

• 2

• 3

• 4

How many orbitals are there in the 'f' sublevel?

• 3

• 5

• 7

• 9

What is the difference between a ground state and an excited state of an atom?

• Ground state is the highest energy state; excited state is the lowest energy state.

• Ground state is the lowest energy state; excited state has skipped/jumped to a higher energy due to absorbed energy.

• Ground state and excited state are the same; they both refer to atoms at rest.

• Ground state is when an atom is ionized; excited state is when it is neutral.

How many electrons can the first energy level hold?

• 1

• 2

• 8

• 4

What is the Pauli Exclusion Principle?

• Only 2 electrons can fit in each orbital

• Electrons can occupy the same orbital if they have opposite spins

• No more than 8 electrons can exist in a single atom

• Electrons are not allowed in the same energy level

What is the shape of p orbitals?

• Spherical

• Dumbbell shaped

• Cylindrical

• Triangular

What does the quantum mechanical model tell us?

• where electrons are most likely to be found in an atom

• the exact position of electrons in an atom

• the mass of electrons in an atom

• the charge of electrons in an atom

What does the principal quantum number tell you?

• The mass of an electron in an atom

• The energy level of an electron in an atom, or how far the electron can be from the nucleus

• The charge of an electron in an atom

• The speed of an electron in an atom

What is the Heisenberg Uncertainty Principle?

• We can precisely know both the location and speed of an electron.

• We can't know the location and speed of an electron, therefore we can't predict the path of an electron.

• The position of an electron can be determined without any uncertainty.

• The speed of an electron can be measured accurately without affecting its position.

What is the Angular Momentum Quantum Number (l) for a p electron?

• 0

• 1

• 2

• 3