Isotopes: atoms with the same atomic number (also identical number of protons and electrons) but with a different number of neutrons and consequently with a different Atomic Mass.
An isotope is an atom; the atom has not isotopes but an element has isotopes (natural or artificial).
difference between the observed outcome and the "normal" outcome (the difference between P2 and Q
What is the difference between a common wealth and a state?
a city state does not have an emperor the difference between a city-state and an empire is that a city-state does not have an emperor
The difference between the state legislature and the congerss is that the state legislature is state legislature while Congress is national legislature.
There is no difference.
City is local and state is with the state. Pay would be the big difference.
There is no difference. They are one and the same.
The state of being ordinary is called mediocrity.
There is no difference, the state police is the division, the trooper is the person.
The main difference between state and private exchanges under the Affordable Healthcare Act is that state exchanges are run by the government, and private exchanges aren't.
A state is usually a political division of a nation.
Clearly Maine since isotope is has no land area!