Atomic Theory Flashcards
Atom Theory, Billiard Ball
Dalton
Electrons, Plum Pudding Model, Cathode Ray Tube
Thompson
Nucleus, Gold Foil Experiment
Rutherford
Energy Levels
Bohr
Neutrons
Chadwick
Matter= Building blocks called atomos
Democratis
In Nucleus, Positive, 1 amu
Protons
In Nucleus, Neutral Charge, 1 amu
Neutrons
Outside of Nucleus(electron cloud), Negative, No mass
Electrons
Identifies the element, equals #of protons, equals # of electrons
Atomic Number
The # of protons + neutrons, whole number
Mass Number
Atom with same number of protons(same element), but a different number of neutrons
Isotope
Notation that includes element number, mass number, atomic number, and charge
Isotopic Notation
Notation that includes element name and mass number
Mass Notation
Visible light spectrum from low frequency to high frequency
ROY. G. BIV.
Red < Orange < Yellow < Green < Blue < Indigo < Violet
What defines an element?
Protons
What does atomic # represent?
Protons
What does mass # represent?
Protons
Which mass is a whole number?
Mass #
λ: Length of the wave (distance) that’s measured in meters, feet, inches
Wavelength
f: How often the wave passes a point (times a second) that’s measured in hertz, 1/s, per second
Frequency
E: How powerful the light is (joules, J) and the higher the frequency, the higher the energy
Energy
2:8:8 Energy Level Rule is for what?
Bohr Model
- Simplified bohr models
- Dots represent valence electrons
E-Dots
