An atom of an element x has two electrons with n=1, eight electrons with n=2, eight electrons with n=3 and one electron with n=4. from this information only, determine the following wherever possible , where it is not possible, explain why it is not so.
what is the atomic number ofx
how many electrons are in the p - orbital
how many also are in the d orbital

Answer asap need by wednesday morning explain how a buffer works, using an ethanoic acid/sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.