Chem Thingy

Important Principals

100

What is Aufbaus principle?

The Aufbau principle states that the electrons first occupy the lowest energy orbitals and then move on to higher ones.

200

What principal is this "No more than two electrons can exist together in an orbital"

Pauli Exclusion Principal

300

What is Hunds rule?

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.

400

The Pauli Exclusion Principle says what about two electrons inhabiting an orbital

That two electrons inhabiting an orbital must have opposite spins

500

When an electron spins around its axis it can do what?

It can rotate in either a clockwise or counter clockwise way

Writing Electron Configurations

100

How many orbitals does a P orbital have? 

3 orbitals

200

1s² represent two electrons in the s orbital of the _____

First orbital level 

300

The numbers in regular scripts represent what?

The energy level

400

The what numbers tell how many electrons are in that particular orbitals

Subscript

500

What is the electron configuration of neon?

1s²2s²2p⁶3s²wp¹

Periodic Table

100

As you move along the periods horizontal rows from left to right, the what increases?

The atomic number

200

The period number 1 through 7 indicates in which energy level the ____ ____ lie?

Outermost electrons

300

How many blocks does the periodic table break into and what are there names?

4 blocks : s, p, d, and f

400

What do the vertical columns form on the table

The columns form groups of elements

500

All elements in one group have the same what?

Number of electrons in their outermost shell

Electron Configuration

100

What is calciums electron configuration?

[AR] 4s²

200

What is sodiums electron configuration?

[NE] 3s¹

300

What is nitrogens electron configuration

1s²2s²2p³

400

What is sulfurs electron configuration

[Ne] 3s²3p⁴

500

What is heliums electron configuration?

1s²

Copper

100

What element is a period 4 transition metal and has 29 electrons?

Copper

200

What is coppers electron configuration

1s²2s²2p⁶3s²3p⁶4s¹3d¹⁰

300

True or false, Coppers electron configuration is 1s²2s²2p⁶3s²3p⁶4s²3d⁹

False its 1s²2s²2p⁶3s²3p⁶4s¹3d¹⁰

400

Why does coppers configuration not follow the normal rules for electron configuration?

Because completely full d-sublevels make the electron configurations more stable

500

What happens to one of coppers 4s electrons?

They move into the 3d sublevel since the atom seeks stability