What is the formal charge on nitrogen in NH_4? a. 0 b. 1 c. 2 d. 3 e. 4 Which wo

Question

What is the formal charge on nitrogen in NH_4? a. 0 b. 1 c. 2 d. 3 e. 4 Which would be expected to be the most electronegative? a. Cl b. Se c. Bi d. Cs The electronegativity difference between two atoms is 2.1. A bond between the two would be expected to be _____? a. nonpolar covalent b. polar covalent c. ionic Rank the following covalent bonds in order of increasing polarity: C-H, N-H, O-H, F-H. A) F-H, O-H, N-H, C-H B) O-H, F-H, N-H, C-H C) N-H, F-H, O-H, C-H D) C-H, N-H, O-H. F-H E) C-H, F-H, O-H, N-H la. Give the electron configuration, the noble-gas-core-abbreviated electron configuration, and whether it's diamagnetic or paramagnetic for an atom of arsenic in the ground-state.

Explanation / Answer

18 . A (Cl is most electronegative after F,O,N)

19. C ( if difference is more than 2 , it will be ionic compound)

20. D ( F,O,N will have high electronegativity so it will have maximum polarity )

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