[أسطورة الريف]

9. What is the formal charge on the oxygen atom in N2O (the atomic order is N-N-O)?
A. 0
B. +1
C. -1
D. -2
E. +2


من أول يطلع لي الجواب d
N=5-2-4+-1
N=5-4-0=-1
O=6-2-4=0


10. Which of these substances will display an incomplete octet in its Lewis structure?
A. CO2
B. Cl2
C. ICl
D. NO
E. SO2

مو يعتبر odd

9. If the radius of atom X is greater than the radius of atom Y, then it is also likely that

A. X has a larger electron affinity than Y does.
B. X has a larger first ionization energy than Y does.
C. X has greater llic character than Y does.

10. Arrange these ions in order of increasing ionic radius: K+, P3-, S2-, Cl-.


A. Row 1
B. Row 2
C. Row 3
D. Row 4
E. Row 5
يطلع لي الجواب b


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