Trendy Periodic Table

download report

Transcript Trendy Periodic Table

Trendy Periodic Table
Period vs. Row
• The periodic table is
__________________
which are called
Periods.
• The ___________
Periodic Table are called
Groups or Families.
Families
Metal, Metalloid, Nonmetal
Metals
Nonmetals
• Become ________ ions
(___________).
• ______________ electricity.
• ________________.
• ______________.
• Usually a __________ at room
temperature. ________
melting points.
• Become _______ ions
(____________).
• _______________electricity
or heat.
• ______________.
• __________________
• Usually a _________ at room
temperature. _________
melting points.
Metalloids:
Some properties of metals, some properties of nonmetals.
Atomic Radius
• Size ______________________ down a group.
• Size generally ___________ across a period from left to right .
Ionization Energy
• The ionization energy of an atom is the amount of
energy _________________________from the
gaseous form of that atom or ion.
• 1st ionization energy - The energy required to
remove ___________________from a neutral
gaseous atom.
• For Example:
Na(g) → Na+(g) + e-I1 = 496 kJ/mole
• Notice that the ionization energy __________. This is
because it __________ energy to remove an
electron.
Ionization Energy
Electron Affinity
• Electron Affinity is the
_________________________________________.
• Example:
Cl(g) + e- → Cl-(g)E.A. = -349 kJ/mole
• Notice the sign on the energy is ______________.
This is because energy is usually _____________ in
this process, as apposed to ionization energy, which
requires energy.
• A ________________corresponds to a
____________ attraction for an electron. (An
unbound electron has an energy of zero.)
Electron Affinity
Electronegativity
• Electronegativity is an atom's ‘________' to
___________________________. A high
electronegativity value implies that the
valence electrons are tightly held and
___________________________________
• Period - electronegativity _______________
as you go from left to right across a period.
• Group - electronegativity
___________________ as you go down a
group.
Electronegativity
Reactivity
• Reactivity refers to how
_________________________________________. This is
usually determined by how easily electrons can be removed
(____________________) and how badly they want to take
other atom's electrons (_____________________) because it
is the transfer/interaction of electrons that is the basis of
chemical reactions.
• Metals
– Period - reactivity ___________________ as you go from left to right
across a period.
– Group - reactivity _____________________as you go down a group
• Non-metals
– Period - reactivity ______________ as you go from the left to the right
across a period.
– Group - reactivity ___________________ as you go down the group.
Ionic Radius
• Metals - the atomic radius of a metal is
generally ______________ than the ionic
radius of the same element.
• Non-metals - the atomic radius of a non-metal
is generally ______________ than the ionic
radius of the same element.
Melting Points
• Metals - the melting point for metals generally
___________________ as you go down a
group.
• Non-metals - the melting point for non-metals
generally ____________________ as you go
down a group.