What are van der waals forces?
a. a permanent dipole that causes hydrogen bonding in nonpolar
molecules
b. they are very strong forces that exist between two different
molecules.
c. they change polar molecules into nonpolar molecules
d. a temporary electron shift causing small dipole attractions
between molecules.

the seeing the electronic configuration we can say that the element is fluorine.

fluorine is the most electronegative element in the periodic table.

but by only seeing the configuration we cannot say about its reactivity because we don't know if its configuration after excitation or by addition of electrons.

but if not then, it is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. as the most electronegative element, it is extremely reactive: almost all other elements, including some noble gases, form compounds with fluorine.

the answer is symmetrical : )