Q4: Lesson 1 | Electron Configuration Flashcards
is the arrangement of electrons within the orbitals of an atom to know more about an atom’s electronic property
electron configuration
is the most stable arrangement of electrons of an atom
ground-state electron configuration
outermost electrons of an atom
valence electrons
highest energy electrons in an atom and are most reactive
valence electrons
can be gained, lost, or shared to form chemical bonds unlike the inner electrons which do not participate in reactions
valence electrons
the electrons in an atom fill up its atomic orbitals according to the ____ principle
aufbau
states that before additional electrons with opposite spins can occupy the same orbitals, single electrons with the same spin must occupy each equal-energy orbital first
hund’s rule
no two electrons can have the same combination of four quantum numbers
pauli exclusion principle
states that a maximum of two electrons may occupy a single orbital but only if the electrons have opposite spins
pauli exclusion principle
an atom with electrons that will be very slightly affected by magnetic fields is called
dimagnetic
atoms that do not have all their electrons spin-paired and are affected by magnetic fields are called
paramagnetic
describes the position of electrons around the nucleus
electron configuration
max electrons in s orbital
2
max electrons in p orbital
6
max electrons in d orbital
10
max electrons in f orbital
14
states that electrons fill the lowest energy orbitals first
aufbau
states that electrons will occupy all empty orbitals in a subshell with single electrons having parallel spins before entering half-filled orbitals
hund’s rule
no 2 electrons within an atom may have an identical set of all four quantum numbers
pauli exclusion principle
2 electrons with opposite spin per subshell only
pauli exclusion principle
