The chart shows four stages of demographic transition. Stage 1
Preindustrial
stage
Stage 2
Transitional
stage
Stage 3
Industrial
stage
Stage 4
Postindustrial
stage
Rate per 1000
10
0
Total population
Death rate
Birthrate
Which characteristics are typical of a human population in the industrial
stage?

the old alchemists made significant contributions to science even though there starting premises were off a bit. their conclusions after failure would steer them into better directions for investigation. science is no more than close observation and the initial mistakes result in rethinking and retrying experiments.

that's what i got you can count the number of atoms

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.