All the answers in the equation above will be Zero (0)
A hygrometer is an instrument for measuring the humidity of the air or a gas .
b the absence of a nucleus
Option 4. ratio of electrons to protons
Isotope that has atomic number of 82 is stable. An element that has an atomic number ∠82 more stable except Tc and Pm. Also there is the concept that isotopes consisting a combination of even-even,even-odd,odd-even, and odd-odd are all stable. Many isotopes with no magic numbers of nucleons are stable
