Periodic Trends Flashcards
Atomic Radius
Distance from the Nucleus to Outermost Electron
Ionic Radius
Distance From Nucleus to Electron Cloud
Ionization energy
Energy Needed to Remove an Electron From a Gas
Electronegativity
Ability of an Atom to Attract Electrons
Cation
Positive Ion
Smaller Than Atom
Anion
Negative Ion
Bigger Than Atom
Coulomb’s Law
Closer an electron to the nucleolus the harder it is to remove it
Periodic Law
Elements with similar properties occur at intervals
Atomic Radius Down a Group
increase
Atomic Radius Across a Period
Decrease
Ionic Radius Across a Period
Decrease
Ionic Radius Down a Group
Increase
Electronegativity Down a Group
Decrease
Electronegativity Across a Period
Increase
Ionization Energy Across a Period
Increase