Which represents an intensive property? O a. Hydrogen releases a given amount of energy when it reacts with oxygen.
O b. Hydrogen gas has a given density.
O c. Hydrogen gas has mass.
O d. Hydrogen gas in a steel tank exerts a given pressure.
O e. A balloon filled with hydrogen gas has a given volume.

answerleaving cheese out to get moldy;

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.