Show:
Scientist's Contribution
Models
Inside Info
Name that Atom
Classy Groups
100
He is credited with discovering the electron.
Thomson
100
Thomson's Model was called...
Plum Pudding Model
100
have a positive electrical charge
proton
100
three protons in its nucleus
Lithium (Li)
100
The name of group 1.
Alkali Metals?
200
discovered the neutron
Chadwick
200
Schrodinger and Heisenberg's Model
Electron Cloud Model
200
located outside of the nucleus
electron
200
Period 4, Group 8
Iron (Fe)
200
group of metals that is less reactive than Alkaline Earth Metals
What are Transition Metals
300
He conducted the Gold Foil Experiment which proved that atoms are mostly empty space.
Rutherford
300
His model resembles a billiard ball
Dalton
300
number and arrangement determine chemical properties of an element
electron
300
Halogen in period three
Chlorine (Cl)
300
Least reactive nonmetal group (name)
Noble Gases
400
The first modern scientist to propose the existence of atoms.
Dalton
400
His model involves energy levels and orbits
Bohr
400
determined by subtracting the atomic number from the atomic mass
neutrons
400
Alkaline Earth Metal in the same period as silver
Strontium (Sr)
400
Where are non metals located on the periodic table?
to the right of the zig zag line
500
Determined each energy level is located a specific distance from the nucleus and contains a certain number of electrons.
Bohr
500
His model had a nucleus at the center surrounded by empty space with electrons
Rutherford
500
atoms that have the same number of protons but different number of neutrons
isotopes
500
Noble Gas in the same period as Zirconium
Xenon (Xe)
500
Name 3 physical properties of metals
solids at room temp (except Hg) ductile malleable lustrous good conductors (electric and thermal)