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Question

Question: In \(88Ra^{226}\)nucleus, there are....

In 88Ra22688Ra^{226}nucleus, 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=88Ra226zX^{A} =_{88} ⥂ Ra^{226}

Number of protons = Z = 88

Number of neutrons

=AZ=22688=138= A - Z = 226 - 88 = 138.