Download Periodic Trends.notebook January 15, 2015 Periodic Trends  Atomic Radius

Periodic Trends.notebook
January 15, 2015
Periodic Trends Jan 15­8:03 AM
Atomic Radius
­ Distance from the nucleus to the highest energy level ­ Increases as you go down a group. This trend occurs because as you move from perriod to period an extra energy level is added. ex. Na has 3 energy levels and K has 4 energy level. K has a larger ionic radius. Jan 15­8:20 AM
Jan 15­8:23 AM
1
Periodic Trends.notebook
January 15, 2015
Ionization energy ­The amount of energy required to remove an electron ­More Valance electrons= Higher I.E. ­Less Energy Levels= Higher I.E. Increases across a period
Decreases down a group Jan 15­10:26 AM
Jan 15­10:31 AM
Electronegativity ­ An atom's attraction for an electron. ­More Valance Electrons=High Electronegativity ­Less energy Levels = High Electronegativity ­Most electronegative atom is F. Jan 15­10:31 AM
2
Periodic Trends.notebook
January 15, 2015
­Ionization Energy and Electronegativity work together. ­All trends can be verified numerically on Table S. Jan 15­10:34 AM
3