Chapter 4: The Modern View of Atoms and Their Chemistry Flashcards
What is the current model of the atom called?
quantum mechanical model
what happens when a wave overlaps another?
constructive interference
what happens when the crest of one wave overlaps with the trough of another?
Destructive interference
What is the photoelectric effect?
when light is shines on certain metals, it causes them to emit electrons
what is another name for orbitals?
electron clouds
what and the dumb-bell shaped orbitals called?
p orbitals
what orbital can an electron be in at the second energy level?
2s or 2p
What orbital is at level three?
3s, 3p, and five 3d orbitals
what shape is the s orbital? p orbital?
spherical; dumbbell
True/false: each energy level opened up a new type of orbital for the electrons to occupy
True
True/false: electrons can behave like waves but not particles
false
what is the wave-particle duality?
The concept that light, as well as many subatomic particles have the properties of both particles and waves
True/false: an orbital can accommodate more than two electrons
False
state the Aufbau principle
Electrons filled orbitals, starting with the lowest energy ones, and then filling higher energy orbitals as needed
what is a valence electron?
an atoms outer most electrons