$\mathrm{Br}^{-}>\mathrm{Cl}^{-}>\mathrm{Na}^{+}>\mathrm{Be}^{2+}$

$\mathrm{Be}^{2+}>\mathrm{Na}^{+}>\mathrm{Cl}^{-}>\mathrm{Br}^{-}$

$\mathrm{Cl}^{-}>\mathrm{Br}^{-}>\mathrm{Na}^{+}>\mathrm{Be}^{2+}$

$\mathrm{Na}^{+}>\mathrm{Be}^{2+}>\mathrm{Br}^{-}>\mathrm{Cl}^{-}$

$\mathrm{Be}<\mathrm{Na}<\mathrm{Al}<\mathrm{B}$

$\mathrm{B}<\mathrm{Be}<\mathrm{Al}<\mathrm{Na}$

AI $<\mathrm{Be}<\mathrm{B}<\mathrm{Na}$

$\mathrm{Na}<\mathrm{Al}<\mathrm{B}<\mathrm{Be}$

atomic number to atomic weight

atomic weight to atomic number

neutron number of atomic weight

electron number to atomic number

Li and Mg

Li and Na

Mg and Al

Be and B