Printable periodic table

• Solid (S)
• Liquid (L)
• Gas (G)
• Not measured

Electronegativity increases from left to right across a period and increases as you move up a group.

Main-group elements: the group number tells you the valence electrons (groups 13–18: subtract 10). * Transition and inner-transition metals show their outer-shell count; inner d or f electrons can also bond.

The charge each element's most common ion carries. Metals lose electrons (+), nonmetals gain them (−).