Periodic Table
A small majority of elements are considered metalloids. What are they?
Dense center of the atom
Nucleus
Li
Lithium
Developed the original idea for the atom
Democritus
Pb
Lead
A majority of elements are in this family
Metals
Very small subatomic particles with a negative charge
electrons
Al
Aluminum
Developed the atomic theory (4 parts)
John Dalton
John Dalton
The name of the series of elements from 57-77
Lanthenoid
The size of the nucleus if the atom was the size of USBank Stadium
Pea
Au
Gold
Used a gold foil to find the nucleus of the atom
Rutherford
Number of groups on the periodic table
18
Creator of the first periodic table
Who is Dimitri Mendeleev
The regions around the nucleus where an electron "could" be located
Orbitals
Ar
Argon
Developed the Bohr Model of the atom
Neils Bohr
Atomic number
the number of protons (which is the same as the number of electrons)
Group 18 with 6 specific gasses. What are they called
Noble Gasses
The neutrally charged portion of the atom
neutron
Na
Sodium
JJ Thomson
Atomic mass
the number of protons and neutrons