The octet rule states that, in chemical compounds, atoms tend to have

Atoms will either try to lose or gain electrons in order to have eight electrons in the outermost shell (excluding hydrogen, which only needs 2 for a full outer shell)

This is what i found on google “when one phosphate group is removed by breaking a phosphoanhydride bond in a process called hydrolysis, energy is released, and atp is converted to adenosine diphosphate (adp). likewise, energy is also released when a phosphate is removed from adp to form adenosine monophosphate (amp).” i hope this you .