Which lsotope below has the highest nuclear binding energy per nucleon? No calculation h

a$.4$He

b$.55$Mn

c$.{?}^{32}S$

d$.{?}^{16}O$

$8.$ All the following nuclei is a closed shell nucleus except

a$.{?}_{20}^{40}Ca$

b$.{?}_{50}^{120}Sn$

c$.{?}_{20}^{48}Ca$

d$.{?}_8^{16}O$

$9.$ The variation of the binding fraction is very slight and may be constant for

a$.$ for very heavy nuclei $A>180$

b$.$ for

$c.$ for very light nuclei $A<mn\; id="EditorElement\_3040949">2</mn><mn\; id="EditorElement\_3040950">0</mn>$

$d.$ for $A=180$

$10.$ The atomic mass $of$ neutron with mass $of1\mathrm{.}6749{10}^{{?}^{{?}^{?}}}-27kgin$ amu unit.

$a.5\mathrm{.}486{10}^{{?}^{{?}^{?}}}-4U$

$b.1\mathrm{.}00897U$

$c.0\mathrm{.}0004586U$

$d.1\mathrm{.}00728U$

$11.$ The amount $of$ energy that $is$ needed $to$ remove a neutron from the nucleus $is$ called

$a.$ Separation energy

$b.$ Excitation energy

$c.$ Potential energy

$d.$ Kinetic energy

$()8()92$