Chemistry, asked by AnubhavRock, 1 year ago

nucleus with the 4 proton and 5 neutrons

Answers

Answered by rhearocx
1
The atomic mass:8:Beryllium
Beryllium; the stable isotope is the one that contains 4 protons and 5 neutrons.

tony19: Atomic mass is 9 and not 8
maryamnaeem: beryllium-9 is the isotope.
tony19: No
tony19: 9 is the real mass of Be
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