what is the equation for energy?
E=hv or E=hc/(lambda)
From high energy to low energy name the electromagnetic radiation
Gamma, X-rays, Ultraviolet, Visible, Infrared, Microwaves, Radio waves
From longest wavelength to shortest name the electromagnetic radiation
Radio, Microwaves, Infrared Visible, Ultraviolet, X-rays, Gamma
m= where an electron ended up
n=where an electron started
Principal Quantum Number
symbolized by n, indicates the main energy level occupied by the electron
Angular Momentum Quantum Number
the quantum number that indicates the shape of the orbital
Magnetic Quantum Number
Gives the orientation in 3-dimensional space
s orbital shape
p orbital shape
Pauli Exclusion Principal
no two electrons in the same atom can have the same set of four quantum numbers
electrons enter orbitals of lowest energy first, each orbital can only hold 2 electrons and the electrons must have opposite spins
If 2 or more orbitals have the same energy, 1 electron goes into each orbital until all are half filled then start pairing electrons with opposite spins
What is the period trend with respect to size?
The size of an atom increases going down a group, the size of an atom decreases going across a period (left to right)
How do you do electron configuration of ions?
For main group elements you add or remove electrons to get a noble gas configuration.
For ex: Na=[Ne] 3s^1
the amount of energy required to remove an electron from an atom
what it the ionization energy trend?
decreases going down a group, increases left to right across the periodic table
The amount of energy required to add an electron to an isolated atom in the gas phase