In ${ }_{88} R a^{226}$ nucleus, there are
Answer & explanation
Correct answer: option 2
${ }_z X^A={ }_{88} R a^{226}$
Number of protons = Z = 88
Number of neutrons = A − Z = 226 − 88 = 138
In ${ }_{88} R a^{226}$ nucleus, there are
Correct answer: option 2
${ }_z X^A={ }_{88} R a^{226}$
Number of protons = Z = 88
Number of neutrons = A − Z = 226 − 88 = 138