(b) the dipeptide aspartyl-lysine consists of an aspartate residue (side chain contains a carboxylic acid group) attached to a lysine residue (side chain contains an amino group). calculate the net charge on aspartyl-lysine at ph 2 and ph 12. calculate the charge to the nearest 0.5 of a unit and show all workings. assume the following pka values a-carboxyl group 2; side chain carboxyl group amino group 11. a calculator is not required to answer this question 4; a-amino group 9; side-chain

answer: a chemical reaction

explanation:

im not wrong

"among the transition metal elements, manganese and zinc have a slight lowering of electronegativities. the reason behind this is that the nuclear charges of these elements are slightly weaker than the other transition metal elements due to the way their valence electrons are filled up. both manganese and zinc have their valence electrons filled up to the 4th shell with 1 pair of electrons (4s2) completely occupying it. although the electrons in the 3rd shell (3d) are yet to be paired since the outer most shell is filled up, the ability of the nucleus to attract electrons is lessened. hence,   the electronegativity (or the ability to attract electrons) is lessened."