Unlike phantom power, bias does not require a balanced circuit. Bias supplies power to a Junction Field Effect Transistor (JFET) connected to the output of an electret condenser mic element. The JFET acts as an impedance converter that is a necessity in any microphone design that uses a condenser element.
Iodine atoms have 53 electrons and the shell structure is 2.8.18.18.7. The ground state electron configuration of ground state gaseous neutral iodine is [Kr].4d10.5s2.5p5 and the term symbol is 2P3/2.
A: One neutral atom of iodine has 53 electrons. The number of electrons in a neutral atom corresponds to the atomic number of the element. The 53 electrons in iodine occupy five different energy levels. There are two electrons in the first level, eight in the second level, 18 in the third level, 18 in the fourth level and seven in the fifth level. If iodine gains one electron, it becomes a negatively charged ion. The ion has a negative charge because it has 54 negatively charged electrons and 53 positively charged protons. When the number of protons in an atom does not equal the number of electrons in the atom, the atom takes on the charge of the most abundant subatomic particle.