Email
Chat with tutors
logo

Ask Questions, Get Answers

X
 
Questions  >>  EAMCET  >>  Physics
Answer
Comment
Share
Q)

An element '$\mathit{X}$' decays first by positron emission and then two $\alpha$ - particles are emitted in successive radioactive decay. If the product nucleus has mass number 227and atomic number 89 the mass number and atomic number of element '$\mathit{X}$' are:

\[\begin {array} {1 1} (a)\;(273,93) & \quad  (b)\;(235,94) \\  (c)\;(238,93) & \quad (d)\;(237,92) \end {array}\]

1 Answer

Home Ask Tuition Questions
Your payment for is successful.
Continue
...