CHEMICAL BONDING

Fill in all the gaps, then press "Check" to check your answers. If available use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button if available to get a clue. Note that you will lose points if you ask for hints or clues!

attraction boiling points Covalent bonds covalent network delocalised electron configuration electrons are shared electrostatic forces elocalised high high melting inert gas inert gas configuration Ionic bonding ionic bonds ions metal Metallic bonding mobile molecu non metal atoms on metal ons points positive positively charged protons shared electrons strong strong electrostatic toms valence very strong

Chemical Bonding

Chemical bonds are all due to that hold a, i or les together.

The type of bond that can exist between these atoms depend on their .

There are three main types of chemical bonds between atoms.

They are as follows.

is found between metal atoms. The electrons found in the outermost shell of atoms are and highly . Metallic bonding results from the between these d electrons and the metallic ions. These bonds are responsible for the melting point and of metals.

is another type of bonding. These form between and n atoms. Electrons from metals are transferred to the non metals and this creates and negative . Each ion having an electron configuration. The strong attraction between these oppositely charged ions creates . These bonds are strong and it results in and boiling .

are formed between . There is a common bond between the atoms and so that each atom can achieve an . Covalent bonds is actually due to the attraction between the and the of adjacent atoms.

Bonds are which results in very high melting point and boiling points for solids.

CHEMICAL BONDING

Gap-fill exercise.Name:_________________________Class:___________________Date:__________________

Gap-fill exercise.

Name:_______________Class:_Date:__________