A. the remains of a butane cylinder were found in a cellar with dimensions 1.1 x 1.8 x 2.2 m after a fire. the cylinder is labelled are containing 1.65 kg butane when full. it is possible that if the cylinder was leaking or opened that a flammable atmosphere could have been created? flammability limits for butane in air (%volume): lfl 1.9; ufl 8.5

b. what assumption are you making about the distribution of the fuel in the room in your calculations? what additional considerations should you therefore consider in your interpretation of your answer above

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.