How to draw lewis structures For Any Molecule | Examples For SiCl2Br2, PH3, NH4

Lewis was the first to describe the structure of simple molecules on the bases of valence electrons. He was successful in his initial experiments, but later on some new models and theories were published for more accurate structure even for complex molecules.
Lewis structure is the simple figure showing covalent bond and valence lone pair of electrons. It is very simple and easy process to draw lewis structure. First, apprehend the concept and practice it several time, until you have grip over it.
This is the Lewis structure for a water molecule.

Lets start !!! Before Each Step, look at the Picture above, It will help you a lot. 

Step By Step Process Of drawing a Lewis Structure:

Step 1:

Count the valence electrons for each atom making up a molecule. Valence electrons are the key that give you an idea about the structure. In other words one can say lewis structure is the game of valance electrons or more precisely a game of lone pair of electrons. Lone pairs are those electrons which dont take part in bonding so we called them as lone pairs of electrons. 

Step 2:

Complete the octed rule for every atom participating in the molecule. Octed rule is just gaining of noble atomic configuration. Share electrons with the neighboring atoms and show it through some dots pointing toward each other. This is the first step, complete it and then you will be able to move ahead for further completion of the structure as by lewis.

Step 3:

Now draw lines toward each other as per covalent bond. Number of lines equals number of bonds need to complete octed.

Step 4:

Show non-bonding electrons as a pair or more accurately as lone pair at one side. Non bonding electrons act in a pair thats why show them as lone pairs side wise. 

step 5:

Now Choose up a central atom. It is not difficult to judge central atom. Just look at the valency, one having greater valency then all of other will be declared as central atom. Whole structure is build around a central atom.
This completes the lewis structure for water and you can try it on all the other ones

Structures Of Some Important Molecules Like SiCl2Br2, PH3, NH4

SiCL2Br2 Lewis structure draw with Dots

Lewis Structure For PH3 molecule

Lewis structure For NH4:

byumar khan

in Drawing

04:54

How to draw lewis structures For Any Molecule | Examples For SiCl2Br2, PH3, NH4

Lewis was the first to describe the structure of simple molecules on the bases of valence electrons. He was successful in his initial expe...

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How to Draw realistic & anime eyes | Drawing Step By Step

Here you will learn about drawing a human charming and anime eyes with a realistic look. It is not very much difficult as it seems to be at first glance. In drawing anything, you must have self-confidence, which will lead you to your desired destination.

Human eye looks oval or elliptical, horizontally longer and less-broad. While on vertical axis it is very much broader and smaller. Interiorly its hold a ball or scientifically called as pupil. Iris is a circle inside the pupil. Eyelashes and eye brows are the hairs that adds to beautify the pretty looking eyes.

Lets have a look at Realistic eye and then get prepare to start:

Apparatus Required For Drawing An Eye:

• Pencil : should be sharpened, medium dark and rough
• 
  
• Eraser: Should be Kneeded and flexible.
• 
  
• Paper : should be neat and clean, better to have fixed on a clipboard.

Note: At the end I will post a video to more clarify you drawing a anime eye step by step

Step 1:

Drawing an Outline as an oval slight rough shape, don't do over practice. Just make a precise figure as the picture shows above. These outline must be light, so must have a sensitive control over the pencil, because too darkness spoils the drawing.

Step 2:

Draw another precise circle within the outlines, touching the upper boundries, just for the sake of beauty that you will notice at the end result,
learn also how to  Draw a Football step by step guide
Step 3:

Yeah ! now in advance level, Draw another circle within the circle you previously drew, and place a bean shape figure above it.
Darken the inner ball by shading and fill whole of the ball. draw another line above first outline meeting at either ends.

Step 4:

Now its turn to more beatify eye for its attractive, charming and realistic look. sketch some parallel lines inside the circle. and make its outlines some what darker as it shows in the figure above. Draw some hairs as lashes for more anime look.

Step 5:

Shading is key to model your drawing with pencil. Now shade the other areas slightly as darker from the outlines and lighter toward centre, and keep some shining area left unshaded.
Thats all now you have learned step by stp drawing of an eye. Now practice it twice or thrice, and master it, move on accept other challenges and learned to draw even more figures and anatomies. Draw as much as you can, don't be upset at the ugly looking drawing of your own. Rather go ahead and improve your skill and art of drawing.

Video On Drawing and sketching an eye with pencil :

Hope You have enjoyed my article and appreciate it by giving feedback and share it with your fiends.
Also Look at Fun things to do when you are bored at home

byumar khan

in Drawing

11:32

How to Draw realistic & anime eyes | Drawing Step By Step

Here you will learn about drawing a human charming and anime eyes with a realistic look. It is not very much difficult as it seems to be ...

Read More