The flashcards below were created by user
gerardcb
on FreezingBlue Flashcards.
-
Light has properties of both _____________ & ______________
waves; particles
-
What is the speed of light?
3.0 x 108 m/s (300,000,000 m/s)
-
Order of magnetic spectrum from least radiation and longest wavelengths to the most radiation and the shortest wavelengths
Radio, TV, Microwaves, Infrared(Heat Lamp), Visible, UV x-rays, Gamma rays
-
Microwaves have shorter waves than (X-Rays, radio waves, UV light or gamma rays)
Radio waves
-
A heat lamp produces (infrared, radio waves, X-rays or microwave) radiation.
Infrared
-
Amplitude determines the ___________ of light.
Brightness / Intensity
-
How is amplitude measured?
Height of wave
-
What is the distance between successive waves of a crest called?
Wavelength
-
What is frequency?
How fast a wave oscillates up and down through a fixed point in a given time.
-
What color has the highest frequency in visible light?
Violet
-
What are quanta? Who proposed the idea of quanta?
Fundamental "pieces" of energy; Plancks
-
What are packets of energy or light called? Who proposed the idea of this?
Photons; Einstein
-
Who explained the Photoelectric Effect? What is the Photoelectric Effect?
Einstein;
When a photon strikes the surface of a metal, it transfers its energy to an electron in a metal atom. Electrons are ejected from the surface of the metal.
-
What is an orbital?
A region around nucleus where an electron with a given energy is likely to be found.
-
What letter signifies an electron's principle quantum number?
n
-
What does the Heisenberg principle state?
The position and momentum of a moving object cannot be measured and known exactly. Electrons are most likely found in electron clouds or in orbitals.
-
What does the Aufbau principle state?
Electrons are added to the lowest energy orbital first.
-
How did Bohr label energy levels?
By Quantum number (n)
-
Which scientist labeled each energy level in his atomic model by a quantum number?
Bohr
|
|