Question
Question: In \(88Ra^{226}\)nucleus, there are....
In 88Ra226nucleus, there are.
A
138 protons and 88 neutrons
B
138 neutrons and 88 protons
C
226 protons and 88 electrons
D
226 neutrons and 138 electrons
Answer
138 neutrons and 88 protons
Explanation
Solution
zXA=88⥂Ra226
Number of protons = Z = 88
Number of neutrons
=A−Z=226−88=138.