Mass defect and binding energy

The energy equivalent in joules of the mass of

2.0 *10^-31 𝑘𝑔 _____.

• 2.0 *10^-31𝐽

• 6.0 *10^-23 𝐽

• 1.8 * 10^-14𝐽

• 8.2 * 10^-14 𝐽

As the binding energy of a nucleus increases, the

energy required to separate the nucleus into

nucleons _____.

• decreases

• increases

• stays the same

• becomes negative to positive

When nucleons form stable nucleus, binding

energy is _______.

• created from nothing

• destroyed into nothing

• absorbed as high energy photons or

  particles

• released as high energy photons or particles

The atom ₇¹⁴𝑁

has a mass of 14.0031 𝑢.

The mass defect equals ______.

• 0.1089 u

• 0.2026 u

• 0.2341 u

• 0.0003 u

The mass of ¹²C is 12 𝑢 where;

1𝑢 = 1.660 559 * 10^-27𝑘𝑔. This mass is equal to:

• The mass of ¹²C nucleus

• The mass of ¹²C nucleus plus 6 electrons

• The mass of ¹²C nucleus plus 12 electrons

• The mass of 6 protons and 6 neutrons

Which equation links mass and energy?

• E=mc

• E=m²c

• E=mc²

• E=m²c²

A nucleus of carbon-13 contains

• 6 protons and 6 neutrons

• 6 protons and 7 neutrons

• 7 protons and 6 neutrons

• 7 protons and 7 neutrons

The mass defect of a nucleus of carbon-13 is 0.100956 u. What is the mass defect per nucleon?

• 0.016826 u

• 0.014422 u

• 1.312428 u

• 0.007766 u

The mass defect per nucleon for a hydrogen-3 nucleus is 0.003035 u. Convert this to kg.

• 5.038 x 10^-30 kg

• 4.856 x 10^-22 kg

• 2.732 x 10¹⁴ kg

• 2.765 x 10^-33 kg

The mass defect per nucleon for a hydrogen-3 nucleus is 5.038 x 10^-30 kg. What is the binding energy per nucleon in joules?

• 1.511 x 10^-21 J

• 4.534 x 10^-13 J

• 1.360 x 10^-4 J

• 3.149 x 10^-11 J