neopentane molecule, 2.2-dimethylpropane molecular structure, 3d model van der waals

neopentane 22dimethylpropane alkane gas isomers molecule molecular structure chemical formula isolated model c5h12 atom atoms bonding chemistry composition compound flammable oxygen science carbon hydrogen atomic bond element education biochemistry chain scientific structural skeletal laboratory research medical medicine energy 2-dimethylpropane van der waals 2 2-dimethylpropane waals