Formulas/Bonds
What is a sharing of electrons?
Covalent Bonding
A tendency for an atom to attract electrons when chemically bonded to another atom
Electronegativity
Why do atoms share electrons in covalent bonds?
to attain a noble-gas electron configuration
Which Molecule has a triple covalent bonds?
A- F2 B- H2 C- N2 D- O2
C- N2
A chemical formula that describes the makeup of a single molecule
Molecular Formula
A 3-D repeating pattern of + and - ions that are formed by ionic compound
Crystal
How many electrons does a nitrogen atom need to gain to attain a noble gas electron configuration?
3
Which of the following molecules is Polar?
A- CH4 B- H2O C- O2 D- CO2
B- H2O
What is a transfer of electrons?
Ionic Bonding
One of the shapes (geometries) that will always be polar
Pyramid
What is the total number of covalent bonds normally associated with a single carbon atom in a compound?
4
Which of the following molecules is Non-Polar?
A- HF B- NH3 C- CH2F2 D- CF4
D- CF4
What chemical formula is arranged in the smallest whole number ratio?
Empirical Formula
What term means dissolved in water?
Aqueous
Ionic compounds are normally in which physical state at room temperature
Solid
Which would be the best conductor of electricity?
A- Cl2 B- H2O C- CH4 D- NH3 E- NaCl
E- NaCl
What rule happens when atoms gain or lose enough electrons in order to become isoelectronic with a noble gas
Octet Rule
The shape (geometry) that is always an exception to the octet rule
Trigonal Bipyramidal
What is not a characteristic of most ionic compounds
They have low melting points
Which of the following molecules has a tetrahedral shape?
A- HF B- NH3 C- CH2F2 D- HCN
C- CH2F2