Ch. 5.2/5.3 Open Note Quiz

Region of high probability of finding an electron

• atomic orbital

• ground state

• Heisenberg uncertainty principle

• electron configuration

The lowest energy level

• ground state

• excited state

• electron configuration

• Pauli exclusion principle

The tendency of electrons to enter orbitals of lowest energy first

• Heisenberg uncertainty principle

• excited state

• aufbau principle

• Pauli exclusion principle

The arrangement of electrons around the atomic nucleus

• ground state

• atomic orbital

• electron configuration

• Pauli exclusion principle

Each orbital has at most two electrons with different spins

• Heisenberg uncertainty principle

• Pauli exclusion principle

• Hund's Rule

• Aufbau principle

In Bohr's model of the atom, where are the electrons and protons located?

• The electrons move around the protons, which are at the center of the atom.

• The electrons and protons move throughout the atom.

• The electrons occupy fixed positions around the protons, which are at the center of the atom.

• The electrons and protons are located throughout the atom, but they are not free to move.

How does the energy of an electron change when the electron moves closer to the nucleus?

• Energy increases.

• Energy decreases.

• The energy remains the same.

• Energy doubles.

The principal quantum number indicates what property of an electron?

• position

• speed

• energy level

• electron cloud shape

How many energy sublevels are in the second principal energy level?

• 1

• 2

• 3

• 4

The shape (not the size) of an electron cloud is determined by the electron's _____________.

• position

• energy sublevel

• speed

• principal quantum number