Arrange the elements F, P, and Cl in order of increasing eletronegativity. The t

Question

Arrange the elements F, P, and Cl in order of increasing eletronegativity. The total number of valence electrons in the molecule CO_2 is The Lewis structure reveals a triple bond in which of the following molecules? The total number of lone pairs in NCL_3 is Which one of the following molecules has an atom with an incomplete octet? What is the formal charge on the oxygen atom in N_2O (the atomic order is N-N-O)? BeF_4^2- is called the fluoberyllate ion. The formal charge on the beryllium atom in this ion is

Explanation / Answer

23. Order of elements in terms of increasing electronegativity,

B. P < Cl < F

24. Total number of valence electrons in CO2,

E. 20

25. Lewis structure of the following shows triple bond,

C. N2

26. Total number of lone pairs in NCl3,

D. 10

27. The atom with incomplete octet molecule is,

E. BF3

28. Formal charge on oxygen in N2O,

C. 0

29. Formal charge on Be in BeF4^2-,

A. -2

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