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Grade:
        how to calculate the packing fraction and binding energy of sodium in Me? if the mass of proton is 1.00782u ,mass of neutrons 1.00866u and mass of sodium is 22.989u
6 years ago

Answers : (2)

Sunil Kumar FP
askIITians Faculty
183 Points
							packing fraction of sodium will be given by the formula
=volume of atom in aunit cell/volume of the unit cell

binding energy of sodium is given by=
E = (delta)m c^2

(delta)m = 11*mp +12*mn+11*me-m(sodium 23)
= 11*1.007276 amu +12*1.008665 amu - 22.9897692809 amu
= 0.2002813191 * 1.66053892 × 10^-27 kilograms
= 3.3257493*10^-28 Kg

E = 3.3257493*10^-28 * 299 792 458 ^ 2
=2.9890344e-11j
=186.814647778 MeV
6 years ago
Sunil Kumar FP
askIITians Faculty
183 Points
							
packing fraction of sodium will be given by the formula
=volume of atom in aunit cell/volume of the unit cell

binding energy of sodium is given by= E = (delta)m c^2 (delta)m =
11*mp +12*mn+11*me-m(sodium 23) =
11*1.007276 amu - 22.9897692809 amu = 0.2002813191 * 1.66053892 × 10^-27 kilograms = 3.3257493*10^-28 Kg
E = 3.3257493*10^-28 * 299 792 458 ^ 2 =2.9890344e-11j =
186.814647778 MeV
6 years ago
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