Which of the following acid solutions would be the safest to handle? A 1 mol of HCl in 1000 mL of solution
B
0.25 mol of HCl in 100 mL of solution
С
5 mol of Hcl in 5000 L of solution
D
25 mol of HCl in 500 L of solution

you did not give any options thus this is the best answer i can give to you with this little information you have given

> they are both natural and not man made

> they can be tracked and predicted by the right tools

-love shrooms

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.