Chapter 7 - Quantum Theory and the Electronic Structure of Atoms

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Transition metals

Transition metals

________ either have partially full d subshells or quickly produce cations with partially filled d subshells.

Pauli exclusion principle

The ________ is used to determine electron configurations in many- electron atoms.

lightwave theory

The ________ is a hypothesis that describes how light travels through space.

electron configurations

Except for hydrogen and helium, the ________ of all elements are represented by a noble gas core.

paramagnetic refers

The term "________ to materials that have net unpaired spins and are attracted to a magnet.

Physicists

________ have looked into the properties of emission spectra, or the continuous or line spectra of radiation released by substances.

similar spots

The distance between ________ on successive waves is measured in wavelength.

de Broglie

An electron bound to the nucleus, according to ________, acts as a standing wave.

vertical distance

The ________ between a wave's midline and its peak or trough is called amplitude.

photoelectric effect

The ________ is a process in which electrons are ejected from the surface of certain metals when they are exposed to light with a minimum frequency, known as the threshold frequency.

wave function

The ________ of an electron in an atom is known as an atomic orbital.

Diamagnetic materials

________ have no net unpaired spins and are somewhat repelled by magnets.

Light emission

________ at specific wavelengths is represented by line spectra.

number of waves

The ________ that travel through a specific place in one second is known as the frequency v (nu)

p orbitals

The ________ begin with the primary quantum number n= 2 as should be obvious.

thermal energy

Energizing a sample of the material with ________ or another source of energy can reveal a substance's emission spectrum.

Werner Heisenberg

________ developed the Heisenberg uncertainty principle, which states: It is impossible to know the momentum p and the position of a particle with certainty at the same time.

angular momentum quantum number l

The ________ can only take the value zero if n= 1.

quantum numbers

Three ________ are necessary for quantum mechanics to represent the distribution of electrons in hydrogen and other atoms.

light beam

He proposed that a(n) ________ is a stream of particles.

electromagnetic wave

A(n) ________ has an electric field component and a magnetic field component, according to Maxwell's theory.