AP Chemistry Shapes

strong acids

strong acids

HCl, HBr, HI, HNO3, HNO4, HCLO3, HCLO4

strong bases

alkali metals (1st column), heavier alkali earth metals (Ca, Sr, Ba), Group 1A metals and CBS

2 groups of electrons

linear, symmetrical, 180 degrees

3 groups of electrons

trigonal planar, 120 degrees, symmetrical

3 groups of electrons, 1 lone pair

bent, 120 degrees, polar

4 groups of electrons

tetrahedral, symmetrical, 109.5 degrees

4 groups of electrons, 1 lone pair

trigonal pyramidal, polar, 107.5 degrees

4 groups of electrons, 2 lone pairs

bent, polar, 105.5 degrees

5 pairs of electrons

trigonal bipyramidal, symmetrical, 120 degrees in plane and 90 below

5 pairs of electrons, 1 lone pair

seesaw, polar, 120 degrees in plane and 90 below

5 pairs of electrons, 2 lone pairs

T-shaped, polar, 120 degrees in plane and 90 below

5 pairs of electrons, 3 lone pairs

linear, symmetrical, 120 degrees in plane and 90 below

6 groups of electrons

octahedral, symmetrical, 90 degrees

6 groups of electrons, 1 lone pair

square pyramidal, polar, 90 degrees

6 groups of electrons, 2 lone pairs

square planar, symmetrical, 90 degrees

6 groups of electrons, 3 lone pairs

T-shaped, polar, 90 degrees

6 groups of electrons, 4 lone pairs

linear, 90 degrees