The technology, enabled by thorium atoms, could keep time more accurately than atomic clocks and enable new discoveries about gravity, gravitational waves and dark matter ...
We are shown that the atomic number is the number of protons in an atom. We see that the mass number minus the atomic number is the number of neutrons. We complete the atomic structure by explaining ...
Thus p, the charge number, is identical with Moseley's atomic number, Z, which determines the position of the element in the periodic table. The mass number, A, is the sum of n and p. For example ...