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History of the
Atom
Periodic Table
Protons,
Neutrons,
Electrons
Bohr Models
Vocabulary
History of
the Atom
Trends of
the Periodic
Table
Protons,
Neutrons,
Electrons
Bohr Models
Vocab
100
100
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500
This Scientist discovered
the Neutron in 1932.
Who is James
Chadwick?
(Jimmy Neutron)
This Scientist came up with
the idea that electrons orbit
around the nucleus in energy
levels by giving energy to
atoms to excite electrons to
the next level.
Who is Neils
Bohr?
(Bohr...ring )
This Scientist Discovered the
electron and its negative
charge. He thought that
electrons were evenly
spaced throughout a
positive sphere.
Who is J. J.
Thompson?
(Chocolate Chip
Cookie Model)
This Scientist brought back the
Atomic Theory with evidence.
He had four key postulates that
he wanted everyone to know.
Who is John
Dalton?
This Scientist performed the
Gold Foil Experiment and
found that the majority of an
Atom’s mass in the center
which he called the nucleus.
He also found positively
Charged particles called
protons in the nucleus.
Who is Ernest
Rutherford?
The elements in the
periodic table were
originally organized by
their Atomic Mass, but
now they are organized
based on this.
What is the
Atomic #?
(# of Protons)
Elements in the Same
Period on the Periodic
Table have the same
number of these.
What is Energy
Levels?
(Rings)
This is the Number of
Valence Electrons that
every element in the
Boron Family has.
What is 3 Valence
Electrons?
st
1
He published the
effective version of the
Periodic Table.
Who is Dmitri
Mendeleev?
This is the element in
the Nitrogen Group
with the largest
Atomic Radius.
What is Bismuth?
This is found in
energy levels
around the
nucleus and has a
negative charge.
What is an
Electron?
This was discovered
by James Chadwick
to have a neutral
charge?
What is a
Neutron?
This is found by
subtracting the Atomic
Number from the Atomic
Mass.
What is the
Number of
Neutrons?
The number of
these defines
what the element
is.
What is the
Number of
Protons?
(Atomic #)
This is what you get
when you add up the
total number of
Protons and Neutrons
together.
What is the Average
Atomic Mass?
These go in the
center of every
Bohr Model.
What are the # of
Protons and the #
of Neutrons?
This is the # of
electrons that they
rd
3 Energy Level can
hold.
What is 8 electrons?
Daily
Double!
This is the order in
which you fill the
Energy Levels of a
Bohr model with
electrons.
What is filling inside
Energy levels first,
then outside Energy
Levels next?
This is how many
Valence Electrons the
th
Element has in the 4
period of the Alkaline
Earth Metal Group.
What is 2 Valence
Electrons?
This is how many
Energy Levels is needed
to house 17 electrons in
a Bohr Model.
What is 3
Energy
Levels?
The Smallest unit of
an element that
maintains the
properties of that
element.
What is an “Atom”?
A substance that cannot
be separated or broken
down into simpler
substances by chemical
means. All atoms in this
substance have the
same atomic #.
What is an
Element?
(Same Atomic # =
Same Number of
Protons)
This is the # of
electrons in the
outer most shell
of an atom. This
tells you how the
atom will react.
What is a Valence
Electon?
A Substance made up of
atoms of two or more
different elements
joined together by
Chemical Bonds.
What is a
Compound?
The sand on a beach
is an example of this
because it has two or
more substances that
are not chemically
combined.
What is a Mixture?
Final
Jeopardy
Vocabulary
When Oxygen
combines with
Hydrogen to get
Water (H2O) this type
of change occurs.
What is a Chemical
Change?