35 points. PLEASE HELP : Here you will write at least two well developed paragraphs to explain the concept of chemical equations, their relationship to the law of conservation of matter, and their importance as indicated Writing should be professional, free of spelling, mechanical, and grammar errors. (It’s the last question on the picture btw - #10) I will mark brainleist and give as many points as I can.

the answer is definitely 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.