Select the three answers that are correct concerning a saturated solution of pbcl2. pbcl2(s) pb+2(aq) + 2cl-(aq) the system is in equilibrium. the rate of dissolving is equal to the rate of recrystallization. the concentration of pbcl2 is greater than normal. the concentration of the products only is used to determine the ksp.

the answer your looking for is c).

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.