Problem 27E
Energy is required to remove two electrons from Ca to form Ca2+ and is required to add two electrons to O to form O2-. Why, then, is CaO stable relative to the free elements?
Section 1 Fund. Facts of Circuit Theory Definitions o Electricity characteristic of the universe that may be used to transmit energy and to transmit information o Charge electric charge is a characteristic of electrons and protons Protons positive charge Electrons negative charge Neutrons no charge o Voltagea measure of the work required to more 1 coulomb of charge btwn 2 points (nodes) in a network o Current measure of time rate of flow of electrical charge through a circuit element Current is through a circuit o Power the time rate at which energy is dissipated in a circuit element o Resistance the voltage across a resistance is directly proportionsal to the current through the resistance; the constant of proportionality is called resistance and is measure in ohms Positive current enters the negative terminal of the resistance o Ohms Law the relationship btwn the current through a resistance and the voltage across a resistance o Resistor physical device with voltage, current and power and frequency limitations; has inductive, capacitive and thermal effects o Inductance the voltage across an inductace is proportional to the time rate of change of the current through it; this proportionality is inductance, measured in henries o Capacitance current through is pr