Hon bio 2

Matter

Anything that takes up space and has mass
Elements

substances that cannot be broken down to other substances by chemical means
Smallest unit of Matter that retains the properties of an element is called an

atom
Proton (H+)

found in the necules and carries a + charge
Neutron

Found in the necules and carries no charge
Electron (e-)

found around the outside of the atom, carries a - charge
Max # of electrons on the outermost shell

8
Molecule

A group of 2 or more atoms held together by covalent bonds
compound

a substance that contains 2 or more elements into a fixed ratio
Stability

atoms want it , they need a full outer shell of electrons (valence)
Ionic

electrons are donated or receved by the strongest bond
covalent

electrons are shared
Weaker bonding types
- Hydrogen bonding
- Van der Waals forces- weakest bonds
Chemical symbols
- H= hydrogen
- O= Oxygen
- N= Nitrogen
- C= Carbon
- S= Sulfer
- P= Phosphorous
- Fe= Iron

Author

campbellreff

107876

Card Set

Hon bio 2

Description

Chem Intro

Updated

2011-10-10T23:37:04Z