The two-slit (diffraction experiment shows how light can be treated as particles and how light waves carry the statistical information for the experiment if we were to use a beam of electrons instead of light in the experiment, how would the results differ?
a) there would be a attraction pattern similar to. but different from, that using light
b) there would only be a single spot from the of electron team
c) there would be no change
d) there would be no diffraction pattern

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.