NEED HELP AGAIN :( any problem would help also good at Spanish and math so lmk

Explanation:

8) Electronegativity and ionization energy decrease, atomic radius increase.

(Option C)

9) The right-hand side (Option A)

10) Caesium (Option B)

11) The metal can be drawn into a wire without immediately breaking. (Option C)

  the   balanced   equation   for   reaction of   ca metal   with   o2 to   produce   cao   is as below

2 ca+ o2→ 2 cao2

  explanation

the reaction is   balanced     since the   number of atoms   in reactant side is   equal to   number of atoms   in   product side.   for   example   they   are 2   atom of   ca in   reactant   side   and   2   atoms of ca   in   the product side.

  the   process   is a   meet the   requirement   of   redox   reaction because :     calcium   is   oxidized   from   oxidation state 0   to 2+   while   oxygen   is reduced from   oxidation   state   0   to 2-