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 Become ________ ions (___________). ______________ electricity. ________________. ______________. Usually a __________ at room temperature. ________ melting points. Nonmetals 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.