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Early Atomic theories
Atomic Structure
Ions
Periodic Table
Gas Laws/phase changes
100
Define "Chemistry"
The study of matter and it's changes
100
What element has the atomic symbol Pb?
Lead
100
How many electrons does a neutral atom have, in general?
The same as the number of protons.
100
How is the modern periodic table arranged?
By atomic number
100
What are the names of the 6 phase changes?
freezing <--> melting Boiling <--> condensation Sublimation <--> Deposition
200
Who was the scientist who developed the "Gold Foil Experiment?"
Rutherford
200
How many neutrons are there in Ge-75
43
200
How many electrons does N-3 have in its outer (valence) shell?
10 Its original 7 plus 3
200
Identify the following as a metal, non-metal, or metalloid Ni As Br
metal metalloid non-metal
200
Solve: P1 = 2.5 atm T1 = 37 C T2 = 22 C P2 = ?
2.38 atm
300
Name the parts of Thompson's Cathode Ray Tube
Glass Tube, vacuum, high voltage, anode, cathode, metal with phosphorescent paint.
300
Why can animals and plants living around deep sea thermal vents use Sulfur as the basis of their respiration/metabolism?
Because Sulfur shares the same outer shell electron configuration as oxygen, and is only slightly bigger.
300
Draw a solar system model of Ca+2
Picture
300
What do the members of a group (family)have in common?
The same number of valence shell electrons.
300
What was the Alka Seltzer experiment testing, in terms of the ideal gas law?
the relationship between n and V
400
What did JJ Thompson discover?
The electron
400
What is the name of the compound MgCl2?
Magnesium chloride
400
Give the symbol formed when a Barium atom loses 2 electrons
Ba+2
400
Why is it impossible to breathe through a 5m snorkle?
The increase in pressure due to water depth would force the air out of your lungs.
500
Dalton thought all atoms of a given element were identical. Why isn't this true?
Isotopes
500
What is the average atomic mass of Winchium: % abundance Mass of the isotope 22.7% 423 amu 2% 424 amu 75.3% 426 amu
425.5amu
500
Complete the following Symbol Atomic # Mass# #protons # neutrons #electrons Cu+2 64
Complete the following Symbol Atomic # Mass# #protons # neutrons #electrons Cu+2 29 64 29 34 27
500
The most reactive family of metals is the ________?
Alkali metals
500
What is the triple point of an element?
The exact temperature and pressure at which all three states of matter (solid, liquid, and gas) exist in equilibrium.