Lecture 2: Electron Configuration

Question 1

1 mole of an element/compound

Answer 1

Avogadro’s number of atoms /molecules

Question 2

Pauli exclusion principle

Answer 2

Each orbital can hold a max of 2 electrons of opposite spin

Question 3

Aufbau principle

Answer 3

Orbitals fill from lowest to highest energies

Question 4

Chemical bond

Answer 4

Attractive force holding together atoms or ions that makes them function as a unit

Question 5

Bond strength/energy

Answer 5

Energy input required to break a bond

Question 6

Ionic lattices

Answer 6

Ions arranged in a regular stacking pattern

Question 7

Covalent bonding

Answer 7

Electrons shared so that all atoms experience a full outer shell of electrons

Question 8

Octet rule

Answer 8

Atoms proceed as far as possible towards completing their octet by sharing or accepting or donating electrons

Question 9

Electronegativity

Answer 9

Tendency of an atom to attract electron density towards itself in a chemical bond

Question 10

Stoichiometry

Answer 10

Ratio in which reactants react together to form products