A group of students are wandering around a room. When their teacher claps, the students sit down wherever they are. This situation best models the formation of which type of solid? an amorphous solid because the particles do not have a regular structure an amorphous solid because the motion of the particles stopped a crystalline solid because the moving particles lock into fixed positions a crystalline solid because the particles have a long-range order

A. an amorphous solid because the particles do not have a regular structure

Explanation:

Edge2020 :)

explanation:

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.