Electromagnetic radiation is a kind of ___ that behaves like an ___ as it travels through space.
The height of the wave from the origin to the crest or from the origin to the trough is the ___
According to Plank's theory, for a given frequency, v, matter can emit or absorb energy only in ____ ____ ____ __ __.
Whole number multiples of hv
The ____ is the phenomenon in which electrons are emitted from a metal's surface when light of a certain frequency shines on it.
T or F - Like the visible spectrum, an atomic emission spectrum is a continuous range of colors.
T or F - The fact that only certain colors appear in an element's atomic emission spectrum indicates that only certain frequencies of light are emitted.
T or F - The neon atoms in a neon sign emit their characteristic color of light as they absorb energy.
Bohr's model of the atom predicted the ___ of the lines in hydrogen's atomic emission spectrum.
According to Bohr's atomic model, the smaller an electron's orbit, the ____ the atom's energy level.
According to Bohr's atomic model, the larger an electron's orbit, the ____ the atom's energy level.
Bohr proposed that when energy is added to a hydrogen atom, its ____ moves to a higher-energy orbit.
According to Boh'rs atomic model, the hydrogen atom emits a photon corresponding to the difference between the ____ ___ associated with the two orbits it transitions between.
Bohr's atomic model failed to explain the ____ of elements other than hydrogen.
Atomic emission spectrum
______ ____ ____states that it is impossible to know both the velocity and the position of a particle at the same time.
Heisenberg's uncertainty principle
____ ____ ____ originally applied to the hydrogen atom, it led to the quantum mechanical model of the atom.
Schrodinger wave equation
The maximum number of (Electrons, orbitals) related to each principal energy level equals 2n^2
Hydrogen's principal energy level 2 consists of (2s & 3s, 2s & 2p) orbitals.
2s & 2p
Electrons in an atom tend to assume the arrangement that gives the atom the ____ possible energy.
This arrangement of electrons is the most ____ arrangement and is called the atom's ________
Stable, ground - state electron configuration
The __________ states that each electron occupies the lowest energy orbit available.
The ______ _____ ____states that a maximum of two electrons may occupy a single atomic orbital, but only if the electrons have opposite ____.
Pauli exclusion principle, spins
_____ states that single electrons with the same spin must occupy each degenerate orbital before additional electrons with opposite spins occupy the same orbitals.
In an electron dot structure, the element's symbol represents the ____
Atom's nucleus and inner-level electrons
How many valence electrons does a chlorine atom have if its electron configuration is [Ne] 3s^2 3p^5