Looks like no one added any tags here yet for you.
atomic radius
distance from center to the outermost region
ionic radius
distance from center to the outer most region in ion
ionization energy
the minimum energy required to remove 1 mol of electrons from 1 mol of neutral gaseous atoms in
electron affinity
The change in energy released which accompanies addition of an electron to an atom in gaseous state
electronegativity
relative attractions that an atom has for a shared pair of electrons in a covalent bond
atomic radius trend
decreases across period from left to right, increase down group from top to bottom
ionic radius trend
radii of cations (e.g. Mg+) are smaller than their parent. radii of anions(e.g. Cl–) are larger than their parent
ionization trend
increases across period from left to right, decreases down a group from top to bottom
electron affinity trend
increases across a period from left to right, decreases down a group from top to bottom
electronegativity trend
increases across period from left to right, decreases down a group from top to bottom
electron affinity equation
X(g)+e-=X^-(g)
ionization energy equation
X(g)=X^+ (g) + e-