Chemistry? Covalent Bonding?

Question

i'm doing additional science for another gcse at higher tier. i'm revising with a revision guide - because that's how i revise best.
i understand how atoms share and lose electrons but i don't understand covalent bonding?
how do i represent/show it?
and how do i do it?

Answer 1

covalent bonding is bonding that has occured between non-metals, it is when electrons in the outer shell are shared with electrons from another element's outer shell to give both complete outer shells.
A good example is Hydrogen [H2]
Each atom has one electron and both together have two which gives it a complete outer shell.

Answer 2

1.2.2 Covalent Bonds
In covalent bonding, atoms share electrons. Two atoms each “donate” an electron and the electrons form a pair that orbits both nuclei, holding the atoms together as a molecule. In a double bond, each atom donates two electrons.

Answer 3

Covalent bonds i think are like N2 or F2 bonds. they are non polar. I would go to wikipedia.org to be sure though

Answer 4

water.. simple bond.

Have you tried this Agent training game? Its sorta hard ..unless you have the mind like a secret agent or somethin.
http://www.ezprintsolutions.com/blog/agent_training.php

Answer 5

search lewis dot structures, this might explain them better