Z - Wikipedia
https://en.m.wikipedia.org/wiki/Z
WebIn chemistry, the letter Z is used to denote the Atomic number of an element (number of protons), such as Z=3 for Lithium. In electrical engineering, Z is used to denote electrical impedance. In astronomy, z is a dimensionless quantity representing redshift. In nuclear physics, Z denotes the atomic number and Z 0 denotes a Z boson.
DA: 29 PA: 98 MOZ Rank: 38