Lewis Structures
What are the outer-most electrons called?
Valence electrons
Liner shape contains how many atoms?
2 or 3
What is the strongest intermolecular force?
Metallic
Do you need the atomic mass or atomic number of an element?
The atomic mass
How would you name NaCl
Sodium Chloride
What is an octet?
A set of eight valence electrons
Can the bent shape have no non-bonded pairs?
No, it has to have 1 or 2 non-bonded pairs
Ionic bonds attract what together?
A metal and a non-metal
What is the formula for percent composition by mass?
% mass of element = element mass/total mass x 100%
When naming a molecular bond, what do you add to indicate the number of atoms?
Greek prefixes
What is the octet rule?
That atoms like to have their outer shell full nof eight electrons
Can the trigonal planar shape have non-bonded pairs?
No, it cannot contain any non-bonded pairs
In a hydrogen bond, which three elements does it bond to?
Fluorine, Oxygen, and Nitrogen
Do you need the molecular formula or empirical formula?
Empirical formula
When naming a stock bond, what do you have to add to indicate the ionic charge?
Roman numerals
What are the exceptions to the octet rule?
Hydrogen, Helium, and Boron
How many non-bonded pairs can the trigonal pyramidal shape have?
Only one non-bonded pair
Does dipole attract non-polar or polar molecules?
It attracts polar molecules
In H2O, what is the percent composition of oxygen?
88.8%
What are the two rules of polyatomic naming?
1. Do not change a polyatomic name
2. Involves a polyatomic ion
How can atoms make their outer shell full with eight electrons?
They lose or gain valence electrons by bonding with other elements
How many atoms can the tetrahedral shape contain?
Just 5 atoms
Are molecules in the London Dispersion Force polar or non-polar?
Non-polar
If you have 10g of H2), how much of H is in grams?
1.12g
When naming an acid with H, what does the H become?
Hydro