Murray Gell-Mann
Hour 3
S
Time Period
S  Birthdate: September 15th 1929
S  (he is still alive)
S  His big discovery was in 1964
Big Ideas
The big idea of Gell-Mann was that each atom had Quarks.
Quarks are the smallest part of a atom. There are 3 in each
proton and neutron. There are 6 kinds of quarks; up, down,
strange, charm, bottom and top.
In protons there are 2 up quarks and 1 down quark. In
neutrons there are 1 up quark and 2 down quarks.
Biggest change
S  Gell-Mann and Zweig discovered that there were smaller
particles than protons and neutrons.
Quarks
Quarks are the smallest part of a atoms they are the basic
building blocks for protons and neutrons, There are 6 kinds of
quarks called flavors of quarks; up, down, strange, charm,
bottom and top.
In protons there are 2 up quarks and 1 down quark.
(up=positive charge and down=negative)
Atom
S  There are 3 quarks make up every proton or neutron: here is
what it looks like