Orbitals Flashcards
orbitals
areas in space around the nucleus in which electrons can be found
they can only exist in specific set of energy levels
Electrons transitioning between energy states
electrons can move energy states by absorbing energy to enter a more excited state or emitting energy to return back to the ground state or jump to a lower energy state
electrons always have to return back to the ground state
Octet rule exceptions
expanded octet >8 electrons
any element in period 3 and beyond
P (10 e-)
S (12 e-)
Cl (14 e-)
incomplete octet
H, He, Li (2 e-)
Be (4 e-)
B (6 e-)
Rule about absorbed energy
an atom or molecule can only absorb energy exactly equal to the different between two energy levels
Bohr Model of the Atom
- electrons move around the nucleus in fixed circular orbits
- electrons that orbit further from the nucleus have higher energy
- energy is absorbed when moving from low –> high orbit
- energy is emitted when moving from high –> low orbit
Which atoms will show color in a solution?
metals with unfulfilled d orbitals can produce color because it is the only orbital that can split into 2 different energy levels
allows some electrons to jump up to a higher energy level and transmit visible light?