Binding energy,Magic number

The difference between expected mass and actual mass ?

• Mass defect

• Nuclear mass

• Proton mass

• Binding energy

1 a.m.u is equal to_______MeV

• 1080 Mev

• 960.1 Mev

• 942.5 Mev

• 931.5 Mev

The actual mass of ⁸0¹⁶ is 15.99410 a.m.u and the isotopic mass is 16.1319248 a.m.u so calculate the mass defect?

• 0.737010 a.m.u

• 0.571030 a.m.u

• 0.919108 a.m.u

• 0.1370148 a.m.u

What happen when

We add a single nucleon to the nucleus?

• Increases binding energy

• Decreases binding energy

• Breaks the bond

• None of the above

The binding energybof He atom is 28.298Mev calculate tye binding energy per nucleon(He⁴)

• 8.4902Mev

• 7.0747Mev

• 9.2727Mev

• 0.77267Mev

How many recognized magic numbers?

• 8

• 7

• 6

• 4

The nuclei containing a magic number always have a_____first excitation level of energy

• Higher

• Lower

• Very low

• None of the above

Which is double magic number?

• ⁸0¹⁶

• ⁸²Pb²⁰⁷

• ⁸³Bi²⁰⁹

• ⁸0¹⁷

Which is single magic number?

• ⁸²Pb²⁰⁷

• ⁸0¹⁶

• ²He⁴

• ¹⁰Ca²⁰

Magic number indicates the number of_____

• Electron shell

• Nuclear shell

• Proton

• Nucleon