6
CH2CH2 Ethene Molecule
C -0.6637    0.0000    0.0000 
H -1.2600   -0.9022   -0.0000 
H -1.2600    0.9022    0.0000
C  0.6637    0.0000   -0.0000 
H  1.2600    0.9022    0.0000 
H  1.2600   -0.9022   -0.0000 