I have a chemistry exam tomorrow and I don't get the double bonding in covalent bonding

I tried many websites , textbooks and other books and yet nothing worked

Can someone please explain it clearely and in a simple way and please don't put any links for websites ca use belielve it I tried all of them !

Please help

Alright, so double bonding is when the elements share two pairs of electrons.

For example:


CO2 has two double bonds.

There are 4 dots around carbon, and 6 dots around oxygen. So make the Lewis dot structure and you will get two double bonds.

Thanks alot

Ok , does double bonding occur with diatomic atoms , or when do we use them basically ?

Double bonding MAY occur with diatomic molecules but not most of the time. When do we use double bonds. The simplest answer is we use them when the two atoms being bonded must share TWO PAIRS of electrons. Sharing one pair of electrons is a single bond. Sharing two pairs is a double bond. Sharing three pairs is a triple bond. In other words, a pair is a bond, two pairs a double bond, and three pairs a triple bond. I'll stop there if that is sufficient but the next obvious question is, "How do we know if we need to share a pair, or two pairs, or three pairs?"

give an example of a hydrophobic

Of course, I'll explain the concept of double bonding in covalent bonding in a clear and simple way.

Covalent bonding occurs when two atoms share electrons to form a bond. This type of bonding is common between nonmetals. In some cases, two atoms can share more than one pair of electrons, and this is called a double bond.

To understand double bonding, let's look at an example using the molecule carbon dioxide (CO2). Carbon dioxide consists of one carbon atom (C) and two oxygen atoms (O).

In a double bond, two pairs of electrons are shared between the atoms. In the case of carbon dioxide, each oxygen atom shares two electrons with the carbon atom, resulting in a total of four shared electrons.

The Lewis structure can help visualize this. Each line represents a bond, and each pair of electrons is represented by a dot. The Lewis structure for carbon dioxide would show two lines (representing the double bond) between the carbon atom and each oxygen atom, with two dots above and below the carbon atom, indicating the shared pairs of electrons.

In summary, double bonding in covalent bonding occurs when two atoms share two pairs of electrons. It is represented by two lines in the Lewis structure, indicating the double bond.

Remember to practice drawing Lewis structures and understanding the concept through examples to solidify your understanding. Good luck with your chemistry exam tomorrow!