ATOMS
= proton, positively charged
Bohr Model
= neutron, neutrally charged
While this model is useful for
diagramming atoms in 2-D,
the electron cloud model is the
currently preferred model.
= electron, negatively charged
electrons (-) orbit
in shells, each
shell can hold a
set #
Nucleus:
contains
protons (+) & neutrons
gives atomic weight
K shell = 2
L shell = 8
M shell = 18
• Atoms are the basic unit of matter that cannot be
further broken down without extreme measures.
• Atoms have a dense central nucleus and a
surrounding cloud of negatively charged electrons.
• The nucleus contains positively charged protons and
electrically neutral neutrons.
• Electrons are bound to the nucleus by the
electromagnetic force.
• The number of protons determines the chemical
element.
• The number of neutrons determines the isotope of
the element.
NewSullivanPrep.com
N shell = 32
Carbon
Oxygen
Hydrogen
Nitrogen
Helium
Iron
ATOMS
Bohr Model
NewSullivanPrep.com
ATOMS
___________________ Model
= proton, ____________ charged
While this model is useful for
diagramming atoms in 2-D,
= neutron, ___________ charged the _______________ model is
the currently preferred model.
= electron, ___________ charged
• ____________ are the basic unit of matter that cannot
be further broken down without extreme measures.
• Atoms have a dense central ____________ and a
surrounding cloud of ____________ charged
____________.
• The nucleus contains ____________ charged
___________ and electrically neutral ___________.
• Electrons are bound to the nucleus by the
____________________ ____________.
• The number of protons determines the ____________
___________.
• The number of neutrons determines the
____________ of the element.
NewSullivanPrep.com
ATOMS
___________________ Model
= proton, ____________ charged
While this model is useful for
diagramming atoms in 2-D,
the
_______________ model is
= neutron, ___________ charged
the currently preferred model.
= electron, ___________ charged
• ____________ are the basic unit of matter that cannot
be further broken down without extreme measures.
• Atoms have a dense central ____________ and a
surrounding cloud of ____________ charged
____________.
• The nucleus contains ____________ charged
___________ and electrically neutral ___________.
• Electrons are bound to the nucleus by the
____________________ ____________.
• The number of protons determines the ____________
___________.
• The number of neutrons determines the
____________ of the element.
NewSullivanPrep.com