What is the volume of 2.22 moles of helium at 25 degrees Celsius and 766 mm Hg

the ratio of the conjugate base to the acid required to attain the desired ph.

c. electrical charges of ionic bonds.

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.