Data: Complete a data table that includes reaction observations, balanced equation (from the pre-lab worksheet) identification of reaction type (single replacement, double replacement, synthesis, decomposition, acid-base, oxidation-reduction, or combustion) for each experiment in the lab. Lead (II) nitrate and potassium iodide solutions Magnesium metal and hydrochloric acid solution Electrolysis of water Burning magnesium

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.