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masya89 [10]
3 years ago
5

How many neutrons does 85Rb have?

Chemistry
1 answer:
Leona [35]3 years ago
8 0

Answer:

Rb has two isotopes - one having 48 neutrons and the other having 50 neutrons. The atomic mass number of an isotope is the sum of the protons plus neutrons in the nucleus, so the two stable isotopes of Rb are designated 85Rb and 87Rb (their atomic mass numbers).

HOPE THIS HELPED!!!!!!!!!!!!!!! XDDDDDDDDDD

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