Valence Electrons
Where are valence electrons found in an atom?
The electron shell, the outer shell
What do you call a negatively charged Ion?
Anion
What kind of elements make up Covalent Compounds?
Nonmetals
What suffix do you add the end of an anion?
- ide
Write the formula for the following ions.
Li+ and O-2
Li2O
What do you call the limit or maximum amount of valence electrons a shell can hold?
capacity
Cations become positive by gaining or losing electrons
Losing
Ionic or Covalent: What kind of Bond is the following Compound?
NaCl (table salt)
Ionic Bond
Name this ion
OH-
Hydroxide Ion
What does the SUPERscript of an ion represent?
ex: Mg+2
the ionic charge, the charge
How many valence electrons do the elements in group 13 have?
3 valence electrons
Finish the Rule: "In an Ionic Compound, the # of Cations and the # of anions must equal a net charge of _____________________"
ZERO
Ionic or Covalent: What kind of Bond is the following Compound?
H2O (water)
Covalent Bond
Name this ion
F -
Flouride Ion
Write the formula for the following Ions:
aluminum & sulfur
Al2S3
Draw the Lewis Dot Structure for the element: Nitrogen
**
* N *
*
What kind of elements make up Ionic Compounds?
Metals and Nonmetals
Which property describes a compounds ability to dissolve/not dissolve in a solvent?
Solubility
Name this Ionic Compound:
K2O
Potassium Oxide
What does the SUBscript in a formula represent?
ex: O2
the quantity, amount, how many of that ion
Which RULE describes ions wanting to fill their shell to 8 valence electrons to become stable
Octet Rule
What do you call an ionic compound that is made of two or more atoms? Many atoms
Polyatomic Ion
Ionic or Covalent: What kind of Bonds have a higher melting point? Can withstand the most heat without melting?
Ionic Bonds --> look at your lab data
Name this Ionic Compound:
NaNO3
Sodium Nitrate
Write the formula for the following Ionic Compound:
ammonium sulfate
(NH4)2SO4