Identify the choice that best completes the statement or answers the question. W
ID: 1021662 • Letter: I
Question
Identify the choice that best completes the statement or answers the question. Which type of bonding involves the sharing of valence electrons by two atoms? a. covalent b. ionic c. polar ionic d. intermolecular e. metallic How many valence electrons are contained in CO*? a. 10 b. 11 c. 9 d. 8 e. 14 Indicate which one of the following does not contain a polar covalent bond. a. I_2 b. CO c. HF d. NO e. CN^- Nitrite (NO_2^-) is an important nutrient in the eutrophic zone of the ocean. Which of the following is the correct set resonance structures for this ion? a. a b. b c. c d. d Bond length and bond strength are a. inversely proportional. b. directly proportional. c. identical. d. unrelated e. arbitrary.Explanation / Answer
1] Which type of bonding involves the sharing of valence electron by two atoms?
Covalent
2] How many valence electron are contained in CO+
8
The atomic number of Co = 27
The electron configuration or Co is [Ar] 4s^2 3d^7
There are 2 in the 4s orbital and 7 in the 3d orbital.
Co has 2 + 7= 9 valence electrons in Co
And CO + ion by losing 1 electron from 9 valance cell electron
3] Indicate which one of the following does not contain a polar covalent bond
I2
I2 is not polar covalent bond because they made up of same atom and form iodine molecules by sharing pair of electrons in covalent bond between them
4] Nitrite (NO2-) is important nutrient in the eutrophic zone of the ocean. Which of the following is the correct set resonance structure for this ion?
Answer is a.
5] Bond length and bond strength are inversely proportional