Module 2

is the same as the number of electrons that will be taken to form anions or the number of electrons which will be given away to form cations.

valence shell

bond formed between two or more atoms that share electrons

positions one moves on the periodic table to reach a noble gas column

when two electrons are shared equally

three electrons are shared from each atom

This kind of bond means that the atoms have a partial charge on them, so it has poles and it's called polar.  Because this kind of bond has characteristics of a polar bond and a covalent bond... polar covalent bond

when atoms hang out together because they have opposite charges.

• Oxygen
• Nitrogen
• Sulfur

metal and non-metal ions

electronegativity

are a special characteristic of compounds that contain hydrogen and oxygen, hydrogen and nitrogen, and hydrogen and sulfur

more positive charges at one end, more negative charges at the other

• Oxygen
• nitrogen
• sulfur

dipoles

opposite charges

lose

• Covalent
• triple
• double
• single

• Ionic
• Hydrogen