test

Question 1

Hund’s rule

Answer 1

1. every orbital in a sublevel is singly occupied before any orbital is doubly occupied
2. all of the electrons in singly occupied orbitals have the same spin

Question 2

Pauli’s Exclusion

Answer 2

1. no more than two electrons can occupy the same orbital
2. two electrons in the same orbital must have opposite spins

Question 3

Aufbau’s Principle

Answer 3

Electrons fill orbitals starting from the lowest energy level to the highest. This means orbitals are filled in the order: 1s → 2s → 2p → 3s → 3p → 4s → 3d → 4p, and so on.

Question 4

percentage yield formula

Answer 4

(theoretical yield / actual yield) X 100

Question 5

RAM

Answer 5

(isotope mass X percentage abundance) / total abundance

Question 6

RFM

Answer 6

(RAM of each element X number of atoms)

Question 7

Percentage abundance

Answer 7

(height of isotope / total height) X 100

Question 8

Rf Value

Answer 8

distance moved by substance / distance moved by solvent front