Electron Configuration

Question 1

How are electron orbitals different to electron shells

Answer 1

Electrons shells represent how many electrons surround the atom, electron orbitals represent the space in which these electrons are most likely to be.

Question 2

What are the 3 types of electron orbitals

Answer 2

S-Orbitals, P-Orbitals, d-Orbitals

Question 3

Which electron orbitals are found in each electron shell

Answer 3

1st shell: S-Orbitals
2nd shell: S-Orbitals, P-Orbitals
3rd shell: S-Orbitals, P-Orbitals & d-Orbitals

Question 4

How many electrons will be found in a single orbital

Answer 4

2 electrons

Question 5

What is the order of electron orbitals from lowest energy to highest energy

Answer 5

1s2, 2s2, 2p6, 3s2, 3p6, 4s2, 3d10, 4p6
OR
S-P-D

Question 6

How to determine the electron configuration of an atom

Answer 6

1. Find the atoms atomic number

2. Follow the order of electron orbitals until reaching the atom on the periodic table..

Question 7

How to determine the electron configuration for an ion

Answer 7

1. Complete steps for finding the configuration of an atom
2. Decide if the ion is a cation or anion
3. For cations, subtract 1 electron for every + charge
4. For anions, add 1 electron for every - charge

Question 8

Which two atoms exceptions to the rules of electron configuration and why

Answer 8

Cr, Chromium and Cu, Copper

Due to half-filled or full-filled orbitals being more stable