Scientists
Sig Fig Rules
Pt Trends
PT History
Misc.
100
Discovered the nuelclus.
Who is Rutherford?
100
Do trailing zeros count?
What is does not count unless there is a decimal.
100
What is the shape of s and p?
What is, s is a shpere, and p is a dumbbell?
100
Mendeleev organized his periodic table by what variable?
What is atomic mass?
100
What happens when an electron gets excited?
What is raises up an energy level, then when it goes back down it emits color.?
200
Produced the Uncertainty Principle.
Who is Heisenberg?
200
Do non-zero numbers count?
What is does count?
200
Atomic Radius. (arrows)
What is increases to the left and down?
200
Who created the first periodic table organized by atomic number?
Who is Mosely?
200
How many electrons can be in one orbital?
What is two?
300
The actual charge of an electron.
Who is Milikan?
300
Trapped zeros do or do not count.
What is does count?
300
Electronegativity. (arrows)
What is increase to right and up?
300
This is the definition of what: The properties of the elements are a periodic function of their atomic number.
What is Modern Periodic Law?
300
What rule sates that you need to fill the lower levels of sublevels first?
What is the Aufbau Principle?
400
Descibe the Gold Foil Experiment.
What is a radio active eelement shooting Alpha particles at a piece of gold foil, most went through it while some bounced back?
400
Place holders. (place value) do or do not count?
What is does not count unless decimal?
400
What are the four quantum numbers, and what they represent?
What is, n=size, l=shape, m=orientation, s=spin?
400
The five main groups of the periodic table are.
What are Alkiali metals, alkali earth metals, transistion metals, halogens, noble gases?
400
What is the difference between electronegativity and ionization energy?
What are electronegativity is the ability to remove electrons and ionization is the energy to remove electrons?
500
Cathode Ray Tube, Discovery of Electron. (Plum Pudding)
Who is Thomson?
500
How many sig figs? 10009.00700
What is 10.
500
Electron configuration for Oxygen.
What is 1s2 2s2 2p4?
500
What is the electron configuration for Potassium?
What is [Ar]4s1?
500
What are the four rules of Dalton's Atomic Theory?
What are 1. all matter is made of atoms 2. all atoms of the same element are identical 3. law of conservation of mass 4. subscripts are whole numbers
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