What is the activation energy for the reaction in this energy diagram?

a.
+40 kj
b.
+60 kj
c.
+80 kj
d.
+20 kj
e.
+100 kj

iron and sleel

make siroeel

the number of protons in the nucleus of a given element. has slight luster and conducts electricity at high temperatures like metal.but like a nonmetal,boron is brittle and does not conduct electricity well at low temperatures. in graphite, carbon is a soft,brittle solid.it is reflective,ductile,or malleable.

i think is conclusions.i think so