3. You are a chemistry student and are given only a formula of a compound. Your job is to identify whether the compound is held together by ionic or covalent bonds(HINT: look at your notes to see what the definition of each bond is. You will need a periodic table too.)

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 correct answer would be b) volume versus temperature, because they are also directly proportional.