Using the atomic masses given below (each value already includes the orbital electrons)

PHYSICS · Single correct · CBSE · Physics · Nuclei · Nuclei

Problem

Using the atomic masses given below (each value already includes the orbital electrons), determine which nucleus has the largest mass defect per nucleon.

^{2}_{1}\text{H}: 2.014102\,\text{u}

^{4}_{2}\text{He}: 4.002603\,\text{u}

^{7}_{3}\text{Li}: 7.016004\,\text{u}

^{56}_{26}\text{Fe}: 55.934937\,\text{u}

(Use

m_p = 1.007276\,\text{u},\; m_n = 1.008665\,\text{u},\; m_e = 0.000549\,\text{u}

.) (a)

^{4}_{2}\text{He}

(b)

^{2}_{1}\text{H}

(c)

^{56}_{26}\text{Fe}

(d)

^{7}_{3}\text{Li}

Related theory

Nuclear Structure
Nuclear Binding Energy
Mass defect and binding energy
Nuclear physics
Mass energy equivalence
Nuclei

Browse the problem library