History
Numbers
Families
Vocabulary
Odds and Ends
100
Created the plum pudding model
Who is JJ Thompson?
100
This element is period 4, group 3.
What is Scandium?
100
Family of Chlorine
What is halogen?
100
Describe what it means to be ductile
Ductile: can be drawn into a long wire
100
Name four properties of metals
Malleable Ductile Good conductors of heat and electricity Solids (except for mercury) Shiny
200
Hypothesized that atoms were like billiard balls- solid, round objects
Who is Dalton?
200
Give the atomic number and atomic mass for Argon.
What is 18 (atomic number) and 39.948amu (atomic mass)?
200
Family of Calcium
What is Alkaline Earth metals?
200
Describe what it means to be malleable
Malleable: can be pounded into a shape
200
Their most useful property is the varying ability to conduct electricity.
What are metalloids?
300
Performed the Gold Foil experiment
Who is Rutherford?
300
Silicon has this many valence electrons.
What is four (4)?
300
Family of Krypton
What is Noble Gases?
300
These are involved in the formation of chemical bonds.
What are valence electrons?
300
Draw the Lewis Dot Structure for Tellurium
Should have 6 dots around Te symbol
400
Describe Rutherford's model of the atom
The protons are concentrated in the nucleus with electrons occupying mostly empty space around the nucleus.
400
Mass Number: 93 Number of Protons: 61 Determine atomic number, number of electrons and number of neutrons
Atomic number: 61 Electrons: 61 Neutrons: 32
400
Family of Silver
What is transition metals?
400
This is the process of reaction and wearing away of metal.
What is corrosion?
400
What forms when a helium nucleus and a calcium nucleus collide?
Titanium nucleus
500
Describe the Cathode Ray Tube experiment
JJ Thompson sent electricity through a vacuum tube and found that it was deflected and attracted by a magnet. He discovered that there were charged particles (electrons) that were much smaller than a hydrogen atom.
500
The mass number for an isotope of iodine is 121. Determine the number of each type of subatomic particle.
Protons: 53 Electrons: 53 Neutrons: 68
500
Family of Plutonium
What is (Lanthanides and) Actinides?
500
These are molecules of two of the same atoms that bond together because they are so reactive.
What are diatomic molecules?
500
Describe the difference between fission and fusion
Fission: splits atoms Fusion: combines atoms
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