Question

Carbon-11 is radioactive. How would you expect it to decay?

Answer 1

First of all Alpha decay decreases the atomic number by 2 units and mass number by 4 units and beta decay increases the atomic number by one unit without changing the mass number.

1. 86Rn^{​​​​​226} ------> 84Po²²² + 2He⁴

^2. 90Th²²⁸------> 88Ra²²⁴ +2He⁴

88Ra²²⁴-----> 86Rn²²⁰+ 2He4

86Rn²²⁰------> 84Po²¹⁶ 2He4

84Po²¹⁶ -----> 82Pb²¹² +2He4

82Pb²¹²----> 80Hg^{208 _+2He4}

80Hg²⁰⁸---> 81Tl²⁰⁸ + -1e0

81Tl²⁰⁸ ------> 82Pb²⁰⁸ + -1e0