Part C Reset the simulation again. Set the ruler at 50 and the left platform at 20. Don't add any molecules yet. Predict what will

happen when you add 30 molecules of substance A. Why do you think this will happen?

dynamic equilibrium is the answer.

the answer is c.the valence of the atoms combine .

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.