A reaction that is not spontaneous at low temperature can become spontaneous at high temperature if ΔH is and ΔS is . a. - , -.b. + , +. c. - , +. d. + , -. e. 0 , 0.

atomic mass = 39

number of neutrons = 20

number of protons= 19

electronic configuration = 1s2 2s2 2p6 3s2 3p6 4s1

the number of electron in first shell = 2

number of electrons in n=3 shell = 8

4d^55s^1 ( third choice)

c. 4.54 x 10–12 j happens to be correct