Economics may best be defined as the Oa
Oь
study of why people are rational.
empirical testing of value judgments through the use of logic.
social science concerned with how individuals, institutions, and society make optimal choices under conditions of scarcity.
interaction between macro and micro considerations.
c
Od

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.