# CHEMISTRY: How to detect bond types

These steps below,shows how to detect if a bond is polar, convalent or ionic

Using electronegativity,we can detect or determine if a bond is Convalent, Polar convalent or Ionic,by finding the difference between the bonding atoms.

First we need to know these,I believe we have seen the electronegativity table of elements before.

Now from the table,I have approximated some values of some elements,so that it will be easier for us to do properly.

Nitrogen:3.0

Oxygen:3.5

Beryllium:1.6

Carbon:2.5

Hydrogen:2.1

Sulphur:2.5

Phosphorus:2.2

Chlorine:3.0

Lithium:1.0

Flourine:4.0

These are what we will be dealing with for today,I have been able to group these elements into an acronym,so that you can memorise the numbers and acronyms of the elements easily in the correct other.

For acronyms in English: NOBECH See people clothes like feather

For Hindi acronyms: NOBECH लोगों को पंख जैसे कपड़े देख

NOBECH stands for the whole elements in the first arrangement,that is Nitrogen, oxygen, beryllium, carbon and hydrogen.

See people clothes like feathers stand for Sulphur, Phosphorus, chlorine, Lithium and flourine.

To remember the values respectively, learn the values for NOBECH.

3,3.5,1.6,2.5,2.1 this won't take up to a minute to memorise this values accordingly

Then to remember the values for the other SPCLLF, just try to memorise the values first,

2.5, 2.2 ,3, 1 and 4

Just practice this for some more time and you'll get it.

Example 1:The bond that exist between H20,is it convalent, Ionic or polar.

Let's do the subtraction:

Hydrogen-2.1

Oxygen-3.5

(E) Difference is 3.5-2.1 = 1.4

Remember:

CPI(Order)

CONVALENT = 0 - 0.4

Polar Convalent= 0.5 - 1.7

Ionic= Above 1.7

So the Bond is between the range of 0.5 and 1.7,we say it's Polar convalent.

Example 2: What bond type exist in NF3

Nitrogen:3.0

Flourine:4.0

Difference is 4.0 - 3.0 =1.0

It's between the range of 0.5 and 1.7,we say it's Polar.

Remember practise makes perfect.

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Beryllium Hydrogen Ionic Phosphorus Polar