Molybdenum is a chemical element with the symbol Mo and atomic number 42. Its electronic configuration is [Kr] 4d5 5s1 and electrons per energy level is 2,8,18,13,1. The arrangement of electrons in an atom in different energy levels and sub-levels is called electronic configuration, and it's the basis of the modern periodic table.
Apparent power is the product of the root-mean-square of voltage and current. Electrical engineers take apparent power into account when designing and operating power systems, because though the current associated with reactive power does no work at the load, it heats the conductors and wastes energy.
An electric light is a device that produces visible light by the flow of electric current. It is the most common form of artificial lighting and is essential to modern society, providing interior lighting for buildings and exterior light for evening and nighttime activities.