Flashcards in Atomic Structure - Mass Number & Isotopes Deck (6)
What is the Mass Number?
The total number of protons and neutrons in the nucleus of an atom
What is the Atomic (Proton) Number?
The number of protons in the nucleus of an atom
What are Isotopes of an element?
Atoms with the same number of protons but different numbers of neutrons
What is Relative Atomic Mass?
The average mass of an atom of an element on a scale where an atom of carbon-12 is exactly 12
What is Relative Isotopic Mass?
The mass of an atom of an isotope of an element on a scale where an atom of carbon-12 is exactly 12