The notation "925 Rb" refers to the isotope of rubidium (Rb) with a mass number of 925. However, this is incorrect since rubidium has only two stable isotopes, Rb-85 and Rb-87. The mass number typically represents the total number of protons and neutrons in the nucleus, and 925 does not correspond to any known or stable isotope of rubidium.
what does 925 A mean
RB as it is at this time
What does SE 925 CZ mean
What does DB 3 925 CN mean
What does CNA 925 STAMP MEAN INSIDE A RING?
i have a bracelet which is stamped 925 on wax, what does this mean
RB means random boner
925 is the symbol for silver
Q: What is 925 GNC What does it mean on jewelry? Write your answer...
925 is Sterling 925/1000. FBM is makers mark
925 is the symbol for silver
The "925" probably refers to the purity: 925/1000 gold.