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Periodic TableHistory and
Organization
Periodic
Families
What is my
size?
Giving up
electrons
I love electrons!
Potpourri
Periodic
Table- History
and
Organization
Periodic
Families
What is my
size?
Giving up
electrons
I love
electrons!
Potpourri
100
100
100
100
100
100
200
200
200
200
200
200
300
300
300
300
300
300
400
400
400
400
400
400
500
500
500
500
500
500
$100
He is sometimes
called the “father
of the Periodic
Table”
Mendeleev
$200
On the original
periodic table,
elements were
organized by similar
properties and this
Atomic mass
(or weight)
$300
These are the two ways
elements on the modern
periodic table are
organized
Similar properties
and atomic
number
$400
The name given to rows on
the periodic table
Periods (rows)
$500
These elements tend to
lose electrons and are
found on the left side of
the periodic table
Metals
$100
Lithium is a member of this
family of highly reactive metals
Alkali metals
$200
Chlorine is a member of
this family
Halogens
$300
Xenon is a member of
this family
Noble Gases
$400
Atoms of elements in
this family tend to lose
two electrons
Alkaline Earth
Metals
$500
Thorium is a member of
this family
Actinide Family
$100
Which has a smaller
atomic radius, cesium
(Cs) or potassium (K)?
Potassium
$200
Which is bigger, a
neutral atom or its
cation?
The neutral atom
is larger
$300
Which has a larger
radius, a neutral atom or
its anion?
The anion has a
larger radius
$400
What is the general trend
for atomic radii as you
move from left to right
across a row on the
periodic table?
Atomic radius
decreases; increasing
nuclear charge pulls
electrons is closer
$500
What is the reason for
the difference in size
between a neutral
atom and its cation?
The cation has
lost (electrons) an
entire energy level
$100
What is the general
trend in ionization
energy as you move
down a group on the
periodic table?
Ionization energy
decreases
$200
What is the general
trend in ionization
energy as you move
across a period from left
to right?
IE increases
$300
What is the difference
between first, second,
and third ionization
energies?
st
1
nd
IE<2
rd
IE<3
IE
st
Or 1 IE= energy to remove
nd
the first electron, 2 is to
remove the second, etc.
$400
What is the name given
to columns of the
Periodic Table?
Groups
Daily
Double!
Daily
Double!
Why does atomic radius
decrease from left to right across
a period?
The number of protons increases,
thereby increasing the nuclear charge
and the force of the nucleus on the
electrons. The increased nuclear force
pulls the electrons in closer
$100
The measure of the ability of an atom
in a chemical compound to attract
electrons from another atom in the
compound is called this.
Electronegativity
$200
Why does electronegativity
increase as you move from
left to right on the periodic
table?
Effective nuclear charge
increases and radius
decreases, increasing the
force/pull of the nucleus on
electrons
$300
What is the name for the energy
released when an electron is added
to an atom?
Electron affinity
$400
What is the most
electronegative
element?
Fluorine
$500
This is when the layers of core
electrons block the valence
electrons from feeling the force of
attraction of the nucleus.
Shielding effect
$100
These are the
most reactive
metals
Alkali metals
$200
The outer shell
electrons involved
in bonding are
called this.
Valence electrons
$300
Metals tend to
___________ electrons to
become ___________
Lose, cations
$400
Put the following atoms in
order from lowest to highest
ionization energy (first IE)
Ba, Cu
Ba<Cu
$500
Put the following atoms in
order from smallest to the
largest atomic radii.
Mg, P
P<Mg
Final
Jeopardy
Periodicity
The shielding effect is
one of the three primary
factors that affect the
periodic trends. Name or
describe the other two.
1. Nuclear charge
(number of protons in the
nucleus)
2. Highest energy level (or
number of energy levels)
Daily
Double!