Look back at parts A and B to compare the properties of the unknown elements with the properties of the known elements. Based on these properties, match each unknown element to its group in the periodic table.
Drag each tile to the correct box.
selected files
es
Comments
Tiles
element 1
element 2
element 3
element 4
element 5
element 6
Pairs
group 1
group 2
group 11
group 14
group 17
group 18

"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."