1.

When an isotope undergoes K-capture, its mass number

Answer»

remains the same while the atomic number increases by ONE
remains the same while the atomic number increases by two
remains the same while the atomic number decreases by one
remains the same while the atomic number decreases by two.

Solution :In K-CAPTURE REACTION, one electron of K ORBIT is absorbed into nucleus.
`""_(42)^(90)Mo overset("K - capture")(rarr) ""_(41)^(90)Nb`
Thus in K-electron capture mass number remains the same while atomic number is decreased by one.


Discussion

No Comment Found

Related InterviewSolutions