(a) a charge of -260e is uniformly distributed along a circular arc of radius 4. 05 cm, which subtends an angle of 45°. What is the linear charge density along the arc?.

yes

ya te ayud espera

catya your not at all which answer i've seen you do this on another question!

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.