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Nuclear Fusion

Calculate the...

Question

Calculate the mass defect and binding energy per nucleon of $_{8}^{16} O$ which has a mass $15.99491 a m u$ .
Mass of neutron $= 1.008655 a m u$
Mass of proton $= 1.007277 a m u$
Mass of electron $= 0.0005486 a m u$
$1 a m u = 931.5 M e V$

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Solution

$Δ M = (15.99491 - 8 \times 1.007277 - 8 \times 1.008655)$
$= - 0.13254$
$B E = - 0.13254 \times 931.5$
BE/nucleon $= 7.716 M e v / n u c l e o n$

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_{7} N^{14}

14.00000 a m u

_{7} N^{14}

= 1.00759 a m u

= 1.00898 a m u

1 a m u = 931 M e V .

_{6}^{12} C

(m_{p}) = 1.00758

(m_{n}) = 1.00893

(m_{e}) = 0.00055

^{12} C = 12.00000

1 a m u = 931

△ m

= △ m \times 931

= \frac{△ m \times 931}{n u m b e r o f n u c l e o n s}

_{4} {B e}^{9}

9.012 u

1.008 u

1.009 u

1 u = 931.5 M e V

_{3} {L i}^{7}

_{3} {L i}^{7} = 7 u

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2

= 1.00893 a m u

= 1.00814 a m u

H e = 4.0039 a m u

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