2: Quantum Numbers
Chapter three: electron configurations
3: periodic properties
Chapter 4: types of bonds
4:Chemical formulas
100
Describes electron's orientation within an orbital. Possible values are +1/2 or -1/2.
What is the Spin quantum number (ms)?
100
Pauli exclusion principle
What says that no 2 electrons in an atom can have the same set of four quantum numbers?
100
IE: removing valence electrons
EA: adding valence electrons
Going from Be to B goes down instead of up
Ni to O decreases
What are the exceptions to the IE and EA trreand?
100
A bond that forms ionic compounds and involves the transfer of electrons.
What is an ionic bond?
100
Simplest whole number ratio of elements in a compound
what is empirical formula?
200
S orbital (spherical)
what is l=0 ?
200
Electrons will fill orbitals from lowest to highest energy.
What is the Aufbau principle?
200
The average covalent bonding radius of an atom.
Decreases across a period, Increases down a group.
What is Atomic Radii?
200
A bond that forms molecules/molecular compounds and involves the sharing of electrons.
What is a covalent bond?
200
The number of each element in a compound.
What is molecular formula?
300
p orbital (two-lobed)
there are 3 p orbitals
what is l=1?
300
When filling orbitals of the SAME energy, place one electron in each orbital before paining up the electrons.
What is Hund's Rule?
300
The energy required to remove a valence electron from an atom.
Increases across a period, Decreases down a group.
What is ionization energy (IE)?
300
A covalent bond in which electrons are shared unequally.
What is a polar covalent bond?
300
calculate the mass percent of C in C2H4O2
40.022%
400
d orbital (4-lobed)
there are five d orbitals.
what is l=2?
400
These are exceptions to the Aufbau Principle.
what are Cu, Mo, Ag, Cr and Au?
400
Energy associated with the addition of an electron to an atom.
No trend down a group, Increases left to right.
What is Electron Affinity? (EA)
The more energy released means a larger EA (more negative value)
400
DAILY DOUBLE!!!
How many moles of KCl are in 0.556 L of a 2.3 M solution
1.3 mol
400
Find the empirical formula of a compound containing 0.672 g Co, 0.569 g As, and 0.486 g O.
Co3As2O8
1. find moles of each element
2. divide by smallest
3, put in whole numbers
500
f orbital (complex)
There are seven f orbitals
what is l=3?
500
Write out the electron configuration for calcium.
1s2 2s2 2p6 3s2 3p6 4s2
500
The charge that a valance electron "feels"
Increases left to right, Increases down a group
What is effective Nuclear charge?
500
A bond in which electrons are shared around may positive nuclei in a metal sold.
what is a metallic bond?
500
Find the molar mass of phosphorus pentachloride.
PCl5
208.1 g/mol