Atomic Radius
Atomic radius is a measure of the size of an atom expressed as the distance from the nucleus to the outermost electron orbit. Atomic radius decreases across the periodic table and increases down a group on the periodic table. |
Atomic Volume
Atomic volume is the volume inside a mole of atoms of one element. It is calculated by dividing the atomic mass of the element by the density. Atomic volume decreases and then increases across the periodic table. Atomic volume increases down a group of elements. |
Electronegativity
Electronegativity is a unitless number that represents the strength of the attraction of an atom in a bond for the shared electrons. Electronegativity increases across the periodic table and decreases down a group of elements on the periodic table. |
Ionic Radius
Ionic radius is the measure of the size of an ion expressed as the distance from the nucleus to the outermost electron orbit. Ionic radius decreases across the metals of the periodic table with a sharp increase in the radius with the first nonmetal and then a gradual decrease. Ionic radius increases down a group of element. |
Ionization Energy
Ionization energy is the amount of energy required to remove the most loosely held electron from an atom. ionization energy increases across the periodic table and decreases down a group of elements. |
Density
Density is a ratio of the mass divided by the volume for one mole of atoms. It could be thought of as how closely the atoms are packed in a sample of the element. Density increases throught the IIIA or IVA family of elements and then decreases. Density increases down a group of elements on the periodic table. |
Electron Affinity
Electron affinity is the amount of energy released when an atom gains an electron. The greater the amount of energy released the greater the atom's electron affinity. Electron Affinity increases across the periodic table and decreases down a group of elements. |
