unit 3 chem vocab

Aufbau principle

says that electrons occupy the orbitals of lowest energy first

Electromagnetic radiation

makes up light, includes radio waves, microwaves, infrared waves, visible light, ultraviolet waves, etc….

Pauli exclusion principle

says that an atomic orbital may describe two electrons at most.

Wavelength

represented by the Greek letter lambda, the distance between the crests.

Photons

light quanta, behave as if they were particles.

Frequency

represented by the Greek letter nu, the number of wave cycles to pass a given point per unit of time.

Hunds rule

states that electrons occupy orbitals of the same energy.

Hertz

the SI unit of cycles per seconds.

Heisenberg uncertainty principle

states that its impossible to know exactly both the velocity and position of particle at same time.

Amplitude

the wave's height from zero to crest.

Energy levels

the fixed energies an electron can have.

Spectrum

when sunlight passes through a prism, the different frequencies separate into a ___________ of colors.

Atomic emission spectrum

frequencies of light emitted by element separate into discrete lines to give ________ of the element.

Ground state

lowest possible energy of the electron.

Quantum

a quantum of energy is the amount of energy required to move an electron from one energy level to another.

Atomic orbital

a region of space in which theres a high probability of finding an electron.

Quantum mechanical model

comes from the mathematical solutions to the Schrodinger equation, restricts energy of electrons to certain values.

amplitude

the waves height from zero to crest

atomic emission spectrum

frequencies of light emitted by by element separate into discrete lines to give atomic emission spectrum of the element

atomic orbital

a region of space in which theres a high probability of finding an electron

aufbau principle

says that electrons occupy the orbitals of lowest energy first

electromagnetic radiation

makes up light, includes radio waves, microwaves, infrared waves, visible light, ultraviolet waves, etc…

electron configurations

ways in which electrons are arranged in various orbitals around the nuclei of atoms

energy levels

the fixed energies an electron can have

frequency

represented by the Greek letter nu, the number of wave cycles to pass a given point per unit of time

ground state

lowest possible energy of the electron

Heisenberg uncertainty principle

states that its impossible to know exactly both the velocity and position of particle at same time

hertz

the SI unit of cycles per seconds

Hunds rule

states that electrons occupy orbitals of the same energy

Pauli exclusion principle

says that an atomic orbital may describe two electrons at most

photons

light quanta, behave as if they were particles

quantum

a quantum of energy is the amount of energy required to move an electron from one energy level to another

quantum mechanical model

comes from the mathematical solutions to the Schrodinger equation, restricts energy of electrons to certain values

spectrum

when sunlight passes through a prism, the different frequencies separate into a spectrum of colors

wavelength

represented by the Greek letter lambda, the distance between the crests