CALCULATE AG FOR THE FOLLOWING AT 25°C Caos + H2O
→ Ca(OH)2(5)
AH,/kl mol-1
S/J K 1 mol-1
Caoi
-635.5
39.7
-285.9
70.0
H2O)
Ca(OH)2(s)
N
-986.9
76.1
BG time!
5 mins

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

b) nuclear ive learned that in a pedtrodic table