You are asked by your instructor to construct a model of the NH_2Cl molecule. Be

Question

You are asked by your instructor to construct a model of the NH_2Cl molecule. Being of a conservative nature, you proceed as directed in the section on Experimental Procedure. First you need to find the number of valence electrons in NH_2Cl_2. For counting purposes with Lewis structures, the number of valence electrons in an atom of a main group element is equal to the last digit in the group number of that element in the Periodic Table. N is in Group ____ H is in Group __ Cl is in Group ___ In NH_2Cl there is a total of ___ valence electrons. The model consists of balls and sticks. How many holes should be in the ball you select for the N atom? ___ the H atoms? ___ the CI atom? ___ The electrons in the molecule are paired, and each stick represents a valence electron pair. How many sticks do you need?___ Assemble a skeleton structure for the molecule, connecting the balls and sticks to make one unit. Use the rule that N atoms form three bonds, whereas Cl and H atoms usually form only one. Draw a sketch of the skeleton below:

Explanation / Answer

Question 2.

the N atom must contain 4 holes

2 holes for each H- bond

and 2 holes for each Cl- bond

H atoms must conatin ONLY 1 hole each

Cl atoms must contain only 1 hole each

1 stick --> 1 lone pair for N

3 lonep airs for each Cl --> 3 sticks per Cl

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