1. Inorganic Chemistry Practical II
The Second Course By
Lecturer Sinan Midhat Al-Bayati
Asst. Prof. Anaam Majeed Rasheed
Asst. Lecturer Al-Ameen Bariz Omar
Supervised by:
Dr. Rehab AbdulMahdi Al-Hassan

2. Experiment No. (4) The Chemistry of Phosphorous

10. Phosphoric Acids

13. Procedure:

14. Questions:

15. The Sixth Group (VI) The Elements Symbol Electronic Structure Oxygen
2[He] 2s2 2p4
Sulfur
16S
10[Ne] 3s2 3p4
Selenium
34Se
18[Ar] 3d10 4s2 4p4
Tellurium
52Te
36[Kr] 4d10 5s2 5p4
Polonium
84Po
54[Xe] 4f14 5d10 6s2 6p4

16. Questions: Why oxygen differs from other elements of the group?
Why all elements of this group are hydrides except for oxygen?
What is the oxidation state of oxygen and the other element that is more stable?
Give the properties for each element in this group.