6. What changes in physical properties do you expect to see in your biopolymer if more borax is added to the synthesis

The biopolymer will become Rigid/solid

Explanation:

When more borax is added to the synthesis the physical change that will be seen in your biopolymer , The Biopolymer  will become more Rigid/solid and this is because the additional Borax helps the long polymer to link up more with each other.

"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."

58750.08068 is the answer i think