   Chapter 10, Problem 53P ### University Physics Volume 3

17th Edition
William Moebs + 1 other
ISBN: 9781938168185

#### Solutions ### University Physics Volume 3

17th Edition
William Moebs + 1 other
ISBN: 9781938168185
Textbook Problem

# A rare decay mode has been observed in which 222 R a emits a 14C nucleus. (a) The decay equation is 222 R a → A X + 14 C . Identify the nuclide AX. (b) Find the energy emitted in the decay. The mass of 222Ra is 222.015353 u.

To determine

(a)

To Identify:

The nuclide AX in the decay equation

R222aXA+C14.

Explanation

Introduction:

Beta decay is a radioactive decay in which atomic nucleus emits beta ray. This process is used to make the unstable atoms more stable. In a radioactive β- decay, a neutron located inside its nucleus is converted into a proton. And at the same time, -10β particle and an electron anti-neutrino, υe- are emitted. It has no electrons to balance the proton having a positive charge.

For nuclear decay, if n= atomic number and m and so are the products, then the relation is n=m+s ...... (1)

If p is the mass of the reactant, and q and r are the products, then the relation is,

p=q+r ........... (2)

The given equation is,

R222aXA+C14

To determine

(b)

The energy emitted in the decay.

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