2.3-2.5 Flashcards
what is the emission spectrum of the hydrogen atom?
the hydrogen molecules absorb energy when the gas receives a high energy spark, and some molecules split into atoms. the hydrogen atoms contain energy that emit light at various wavelengths.
what is the continuous spectrum?
a spectrum that exhibits all the wavelengths of visible light. (like what we see in a rainbow)
what is the line spectrum?
the hydrogen emission spectrum, which only shows certain discrete wavelengths.
what did model did bohr develop?
the quantum model, which is that the electron in a hydrogen atom moves around the nucleus only in certain allowed circular orbits.
what model did schrödinger, heisenberg, and lebroglie develop after bohr’s model?
they developed the idea of wave or quantum mechanics, which put emphasis on the wave properties on the electron.
what did the electron bound to the nucleus resemble to lebroglie and schrödinger?
a standing wave or a stationary wave, like what was observed with the hydrogen atom
what is a wave function?
a function of the coordinates of an electron’s position in 3-D space that describes the properties of the electron.
what is an orbital?
a specific wave function for an electron in an atom. the square of this function gives the probability distribution for the electron.
what is the heisenberg uncertainty principle?
principle that states there is a fundamental limitation to how precisely both the position and momentum of a particle can be known at a given time.
what is probability distribution?
the square of the wave function indicating the probability of finding an electron at a particular point in space.(aka electron density)
