A+E Networks. On this day in 1969, Americaâs first automatic teller machine (ATM) makes its public debut, dispensing cash to customers at Chemical Bank in Rockville Center, New York.
This modification of the energy levels of a hydrogen atom due to a combination of relativity and spin-orbit coupling is known as fine structure.
Hydrogen bonds are primarily formed between molecules as an electrostatic attractions. Hydrogen bonding is the key to water's unique properties as a universal medium. Hydrogen bonds can also form between parts of the same molecule, giving it increase stability. The shape of DNA and large proteins, for example, is maintained by hydrogen bonds within the molecule. general equation for synthesis