Show:
Molecular Geometry
Definitions
Periodic Trends
Bonds and such
Potpourii
100
This force is why molecules take their shape
What is electron repulsion?
100
It is the smallest part of a substance that still maintains the substance's properties
What is an atom
100
This is what the vertical columns on the periodic are called
What are groups?
100
NaCl and KBr are examples of this kind of bond
What is an ionic bond?
100
This figure contains how many significant figures: 0.00308
What is 3?
200
This molecular geometry has 3 electron groups with 3 bonds
What is trigonal planar?
200
____________ but not _____________ are pure substances
What are elements; mixtures
200
On the periodic table the numbers of the "A" groups denote what? ie: 3A, 4A
What are valence electrons?
200
This happens when an ionic bond occurs
What is an electron is taken from one element and by another, creating a cation and an anion
200
An element has what charge?
What is ZERO!
300
This molecular geometry has 4 electron groups with 4 bonds
What is tetrahedral?
300
The bond formed between a nonmetal and a nonmetal is...
What is a covalent bond?
300
Atomic size increases and decreases in which directions?
What is increases as we go down the periods and decreases as we go across?
300
This is how we note and show a difference in electronegativity (please draw an example)
What is delta notation? "g-" ---l--------------> "g+"
300
When 1.8 is multiplied by 14.8467 how many significant figures should the answer have?
What is 2?
400
Name two shapes that have 109.5 degree angles in them
What are tetrahedral, trigonal pyramidal, and bent (with 2 bonds and 2 lone pairs? All 4 have 4 areas that contain electrons
400
To become a negative ion does an element gain or lose an electron?
What is gain an electron?
400
This trend is defined by where Flourine is on the Periodic Table
What is electronegativity?
400
Identify the bond type of the following compounds/molecules: FeS Al(OH)3 SBr2 Zn0
What are: ionic, ionic, covalent, ionic
400
The polyatomic ion carbonate has what chemical formula?
What is 2- (CO3)
500
Name the molecule SBr2, and draw the Lewis Dot Structure, molecular geometry, and note the electronegativity and bond angles of it.
What is Sodium dibromide, (see chalk board), electronegativity goes S+, Br-, bond angle bent 109.5 degrees
500
Different isotopes have a different number of....
What is neutrons?
500
These elements are the "exceptions" to rule in the transitional metals section (have fixed charges)
What are Aluminum (3+), Cadmium (2+), Zinc (2+) and Silver (1+)?
500
This is the 1 - 10 sequence of prefixes for naming covalent bonds
What are: mono, di, tri, tetra, penta, hexa, hepta, octa, nona, and deca?
500
Write milli, kilo, deci, nano and centi in order of decreasing size
What is kilo,deci, centi, milli, and nano