Water is formed when two hydrogens bond to a oxygen atom when a subtance is made of two or more atoms like this, we call it
what answer is it (a) a mixture (b) a complex (c) a compound or (d) an element

c) a compound

Explanation:

a compound is something made up of two or more separate elements, the separate elements in water are hydrogen(H) and oxygen(O)

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.