What element has a proton number of 79?

What neutral atom is isoelectronic to mn+4

Consider the following reactions. (note: (s) = solid, (l) = liquid, and (g) = gas.) mg(s) + ½o2(g) → mgo(s) + 146 kcal/mole h2(g) + ½o2(g) → h2o(g), δh = -57.82 kcal/mole what type of reaction is represented by the previous two examples?

The missing component to the table to the right or indicated with orange letters complete the table by filling in the corresponding numbers or symbols