Modern Atomic Theory

Question 1

Schrodinger’s equation

Answer 1

• a mathematical equation that describes the behavior of an electron in a hydrogen atom
• this helped form the quantum mechanical model
• DO NOT need to memorize for the test

Question 2

Quantum Mechanical Model

Answer 2

• the modern description of the behavior of electrons in atoms
• does not specify a path for electrons moving around the nucleus
• for each energy level, there is a region of space around the nucleus where there is a high chance of finding an electron

Question 3

Atomic orbital

Answer 3

• the probability of finding an electron at various locations
• usually represented by the region of space around the nucleus

Question 4

Shell Model

Answer 4

• a simplified version of the quantum mechanical model
• shell=level
• Principal energy shell is the closest to the nucleus and has the highest energy

Question 5

Shell model: subshell

Answer 5

• Each principal energy level has subshells: s,p,d,f
• Each orbital can hold 2 electrons

Question 6

S orbital

Answer 6

• Each energy shell has an S orbital
• spherical shape
• lowest energy orbital in each shell

Question 7

P orbital

Answer 7

• All subshells except for the first one have 3 p orbitals
• dumbbell shape
• have different orientations in space
• higher energy level that the S orbital

Question 8

D orbital

Answer 8

• 5 types of orbitals
• 4 of 5 d orbitals have a clover leaf shape
• higher energy orbital that s or p

Question 9

F orbital

Answer 9

• 7 types of orbitals
• complex shapes
  -highest energy orbital