How are chemical formulas of binary ionic compounds generally written ?

The formula of binary ionic compounds is written by following some rules and these must be followed.

  1. Firstly the positively charged ion, Cation is written first and then the negatively charged, Anion is written.
  2. After this the corresponding number of ions are written as the subscript.

For example CaCl2 and NaCl.

Lets see how the ionic bonds are made.

For example the bond formed in case of NaCl is a type of ionic bond.

Na → Na +  + 1e

Here the sodium is forming a positively charged ion called the cation.

Cl + 1 e–   → Cl 

Here the Chlorine is forming a negatively charged ion called the anion.

Na+ Cl–   → NaCl

Published by ankushmaster

I am M.Sc (chemistry ) from punjabi university. I am a science teacher with expertise in chemistry, with 8 years of experiance in teaching. i am getting a handsome salary , now i wish to help out the people who need me UNCONDITIONALLY. and I am constantly working on creating a new and easy way of learning the tough things in an effective way. I am constantly working to make authentic and reliable information to be shared with my students and widen the horizons of knowledge.

One thought on “How are chemical formulas of binary ionic compounds generally written ?

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.

%d bloggers like this: