Atomic Theory
Atoms
Equations
Periodic Table
Misc.
100
Said "Same element, same atoms"
Who is Dalton
100
likely to be found outside the nucleus in the cloud
What is electrons
100
Come before the arrow
What are reactants?
100
Columns are called ___________ Rows are called _________
What is groups or families, periods
100
Group 1, highly reactive metals, 1 valence electron
What are the alkali metals?
200
The experiment where Some particles went through Some bounced off Some were deflected
What is the Gold Foil Experiment
200
small, dense, + charge
What is the nucleus
200
What type of equation is this? 2H2O --> 2H2 + O2
What is synthesis?
200
Approximately how many elements are on the table? A. 75 - 100 B. 100 - 125 C. 125 - 150
What is B. 100 - 125?
200
The properties of a compound are ___ from the elements that make the compound.
What is different?
300
My model of the atom was a + blob with - charges throughout
Who is Thomson
300
An atom with 28 protons, 28 electrons & 30 neutrons would have a a mass number of
What is 58?
300
breaks a compound into separate elements
What is a decomposition reaction
300
The order of the regions of the periodic table
What is metals, metalloids, non-metals, inert gases?
300
states that mass can't be created or destroyed in a chemical reaction
What is the law of conservation of mass?
400
Model where electrons travel randomly through an empty space around the nucleus.
What is the electron cloud model?
400
The ratio of Oxygen atoms to Hydrogen atoms in Sulfuric Acid (H2SO4)
What is 4:2?
400
Which is balanced? A. 2 C + O2 -- CO2 B. AgNO3 + NaCl --> AgCl + NaNO3
What is B?
400
Group least likely to form bonds with other elements on the table (name & number).
What is the noble gases, group 18?
400
poor conductors, opposite of metals
What are non-metals?
500
Proposed that electrons travel in specific orbits (energy levels) around the nucleus.
Who is Bohr?
500
First person to be credited with "discovering" the atom.
Who is Democritus?
500
Which is a single replacement reaction? A. CaCl2 + F2 --> CaF2 + Cl2 B. 2KClO3 --> 2KCl + 3O2
What is A?
500
Group of highly reactive non-metals with 1 missing electron in their outer shell.
What is the halogen group?
500
shiny, brittle, good conductors
What are metalloids
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