Important Principals
What is Aufbaus principle?
The Aufbau principle states that the electrons first occupy the lowest energy orbitals and then move on to higher ones.
How many orbitals does a P orbital have?
3 orbitals
As you move along the periods horizontal rows from left to right, the what increases?
The atomic number
What is calciums electron configuration?
What element is a period 4 transition metal and has 29 electrons?
What principal is this "No more than two electrons can exist together in an orbital"
Pauli Exclusion Principal
1s2 represent two electrons in the s orbital of the _____
First orbital level
The period number 1 through 7 indicates in which energy level the ____ ____ lie?
Outermost electrons
What is sodiums electron configuration?
[NE] 3s1
What is coppers electron configuration
1s22s22p63s23p64s13d10
All orbitals in particular sublevel are first singly filled by electrons with the same spin. Once that happens, each orbital is filled with a second electron having the opposite spin.
The numbers in regular scripts represent what?
The energy level
4 blocks : s, p, d, and f
What is nitrogens electron configuration
1s22s22p3
True or false, Coppers electron configuration is 1s22s22p63s23p64s23d9
False its 1s22s22p63s23p64s13d10
That two electrons inhabiting an orbital must have opposite spins
The what numbers tell how many electrons are in that particular orbitals
Subscript
What do the vertical columns form on the table
The columns form groups of elements
What is sulfurs electron configuration
[Ne] 3s23p4
Why does coppers configuration not follow the normal rules for electron configuration?
Because completely full d-sublevels make the electron configurations more stable
When an electron spins around its axis it can do what?
It can rotate in either a clockwise or counter clockwise way
What is the electron configuration of neon?
1s22s22p63s2wp1
All elements in one group have the same what?
Number of electrons in their outermost shell
What is heliums electron configuration?
1s2
What happens to one of coppers 4s electrons?
They move into the 3d sublevel since the atom seeks stability