A laboratory reference book lists the naturally occurring atomic mass of the element…
CHEMISTRY · Multi-part · AP · Chemistry · Atomic Structure and Properties · Atomic Structure and Properties
Problem
A laboratory reference book lists the naturally occurring atomic mass of the element rubidium (Rb) as 85.47 amu. Two isotopes are known: 85Rb and 87Rb. Assume that no other isotopes exist.
(1) Part (a) – Describe the algebraic relationship.
(2) Part (b) – Explain the long-term trend in the average atomic mass.
(3) Part (c) – Identify and discuss one underlying assumption.