Atoms form ions by gaining or losing valence electrons to reach a more stable electron configuration with a full valence shell. the electron configuration of the ion is similar to the nearest noble gas to the atom. identify the charge when nitrogen becomes an ion. a) -3 b) -2 c) +1 d) +5 < 3

Describe at least two advantages and two disadvantages of using hydropower as a source of energy.

How do cfcs cause ozone depletion? how do cfcs cause ozone depletion? ultraviolet radiation breaks down cfcs, molecules containing chlorine. chlorine then breaks one oxygen atom away from ozone, leaving behind a paired oxygen molecule. ultraviolet radiation breaks down cfcs, molecules containing chlorine. chlorine then breaks two oxygen atoms away from ozone, leaving behind a paired oxygen molecule. ultraviolet radiation creates cfcs, molecules containing chlorine. chlorine then breaks two oxygen atoms away from ozone, leaving behind a paired oxygen molecule. ultraviolet radiation creates cfcs, molecules containing chlorine. chlorine then breaks one oxygen atom away from ozone, leaving behind a paired oxygen molecule.

Stoichiometry- i need with 14 and 15! an explanation would be appreciated!