isotopes Flashcards
(5 cards)
1
Q
state the definition of an isotope
A
atoms of the same element with different
mass numbers, due to different numbers of neutrons in the nucleus
2
Q
what is relative atomic mass?
A
an average value that takes account of the abundance of the isotopes of the element
3
Q
what is the equation for relative atomic mass?
A
relative atomic mass (Ar) = [(mass number * abundance) + (mass number * abundance)] / 100
4
Q
how do we calculate abundance?
A
% / 100
5
Q
state the definition of abundance
A
the amount of a form of an element that exists in nature
