Bohr-Rutherford Model of the Atom
Atomic Number - answer the number of protons (and in effect electrons) in one atom of
a specific element (labelled as Z)
Mass Number - answerthe combined number of an atom's protons and neutrons
(labelled as A)
Atomic Mass - answera weighted average (using their natural occurrence) of the mass
numbers of an element's isotopes.
Standard Atomic Notation - answer Superscript before the chemical symbol is the mass
number, subscript before the chemical symbol is the atomic number. The chemical
symbol is placed after, as stated.
Ions - answerparticles that have a positive or negative charge due to a loss or gain of
electrons. Cations are positive ions formed by losing electrons and anions are negative
ions formed by gaining electrons: a ion is represented by its charge superscripted after
its chemical symbol (Fe2+)
Energy Levels - answera possible level of energy an electron can have in an atom,
corresponding to a specific shell and orbit a certain distance from the nucleus
Bohr-Rutherford Model of Atomic Structure - answerdraw a circle for the nucleus and
write the number of protons followed with P+ and the number of neutrons followed with
N0 inside. Draw circles around the nucleus, one for each energy level. See the diagram
for the order the electrons are drawn.
Atomic Number - answer the number of protons (and in effect electrons) in one atom of
a specific element (labelled as Z)
Mass Number - answerthe combined number of an atom's protons and neutrons
(labelled as A)
Atomic Mass - answera weighted average (using their natural occurrence) of the mass
numbers of an element's isotopes.
Standard Atomic Notation - answer Superscript before the chemical symbol is the mass
number, subscript before the chemical symbol is the atomic number. The chemical
symbol is placed after, as stated.
Ions - answerparticles that have a positive or negative charge due to a loss or gain of
electrons. Cations are positive ions formed by losing electrons and anions are negative
ions formed by gaining electrons: a ion is represented by its charge superscripted after
its chemical symbol (Fe2+)
Energy Levels - answera possible level of energy an electron can have in an atom,
corresponding to a specific shell and orbit a certain distance from the nucleus
Bohr-Rutherford Model of Atomic Structure - answerdraw a circle for the nucleus and
write the number of protons followed with P+ and the number of neutrons followed with
N0 inside. Draw circles around the nucleus, one for each energy level. See the diagram
for the order the electrons are drawn.
