Today we worked on Chemical bonding, Electrostatic force, and Polarity!

Starting this I always got confused with non polar, and polar covalent bonds, so here is the difference

• if electrons are shared equally, a non polar covalent bond is formed
• if electrons are shared unequally, a polar covalent bond is formed

Pretty much all of this stuff was review today so i'll catch you up on what we did.
Starting with electrostatic force we reviewed that

• opposites atrract
• like charges repel
• the greater the distance the smaller the attraction
• greater charge the greater the atraction
• electrostatic force exists between charge particles as a result of attraction or repulsion
• force around an atom is equal in all directions
• metals have a low electronegativity values
• non-metals have high electronegativity values
• atoms with high electronegativity values have high ionization energy because they strongly attract their valence electrons and thus are difficult to remove

electronegativity is essential how well an atom sticks to another one
there are two bonds that we learned today:
intramolecular bonds hold atoms together > strong bonds
intermolecular forces between molecules > weak bonds

 






Next we looked at Polarity

• describes molecules electrical balance
• if imbalance with electrical charge, then molecule is polar
• if same strength all sides then non-polar
• higher energy will form partial negative charge
• lower energy will form partial positive charge

That concludes todays lesson!