Electron Dot Diagrams
How can you find an atoms # of valence electrons?
group #
What type of elements do ionic bonds occur between?
metal - nonmetal
How many elements are present in a compound
2 or more
Homogeneous mixtures are also known as?
Solutions
What do dot diagrams show you?
The number of valence electrons
What type of elements do covalent bonds occur between?
nonmetal - nonmetal
Elements form compounds to become?
stable
What is solubility?
Maximum amount of solute a solvent can dissolve
How many valence electrons does an atom need to be stable?
8
transfer
What is the name for the elements that do not form bonds with other elements
Noble Gases
What does concentration of a solution measure?
the amount of solute
On the whiteboard, draw the dot diagram for Nitrogen
Covalent bonds _________ electrons
share
Why is water a polar molecule?
Has partial negative and partial positive ends
Solubility of a solute depends on what two things?
temperature and pressure
Draw the dot diagram for Helium on the whiteboard
Is NaCl and ionic or covalent bond?
Compounds can be separated by physical means
True or False
Carbon dioxide is more soluble at colder temperatures than warmer temperatues
True or False