A) 138 protons and 88 neutrons
B) 138 neutrons and 88 protons
C) 226 protons and 88 electrons
D) 226 neutrons and 138 electrons
Correct Answer: B
Solution :
\[_{z}{{X}^{A}}{{=}_{88}}R{{a}^{226}}\] Number of protons = Z = 88 Number of neutrons \[=A-Z=226-88=138\].You need to login to perform this action.
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