(d) Solid lithium nitride conducts electricity and is used in batteries. Why would you expect solid lithium nitride not to conduct electricity?

Solid ionic compounds do not conduct electricity because the ions are held firmly in place. The ions cannot move to conduct the electric current. But when an ionic compound melts, the charged ions are free to move. Therefore, molten ionic compounds do conduct electricity.

aquifers are bounded above and below by impermeable rock. the driving force of groundwater movement in confined aquifers is pressure, rather than gravity.

b) nuclear ive learned that in a pedtrodic table