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1) Tc
2) At
3) Cl, Fe, Sr, Cs
4) Increase
5) F, N, Be, Ba
6) One of the following; Cu, Ag, Au, Cr, Mo, W
7) Fr
8) Ca, Zn, P, Ne (assuming it has one) or it could be first assuming did not have one
9) Be -> B , IE decrease due to decrease CF since valence electron is in p block for B and s block for Be. p block is further from nucleus than s block so less CF
or
N -> O IE decreases due to decrease CF since one electron in the p orbital of O that has 2 electrons (e--e- repulsion in an orbital) is further from nucleus than N so less CF
10) see your notes
11) Across a period, the CF increases