Ch. 4 Vocab

Question 1

Electromagnetic Radiation

Answer 1

and form of energy that exhibits wave-like behavior

Question 2

Wavelength

Answer 2

distance between corr. points on waves

Question 3

Frequency

Answer 3

number of waves passing a given point per sec.

Question 4

Speed of Light

Answer 4

all forms of ER at the same speed in a vacuum

Question 5

Photoelectric Effect

Answer 5

emission of electrons from a metal when light shines on the metal

Question 6

Wave-Particle Theory

Answer 6

light acts like a stream of particles

Question 7

Max Planck

Answer 7

proposes that objects only emit energy in small, specific packets called a Quantum

Question 8

Quantum

Answer 8

minimum quantity of energy that can be lost or gained by an atom

Question 9

Albert Einstein

Answer 9

each quantum represents a particle of light called photons

Question 10

Photon

Answer 10

particle of ER having 0 mass and carrying a quantum of energy; making it a light particle

Question 11

Ground State

Answer 11

the lowest energy state of an atom

Question 12

Excited State

Answer 12

an atoms higher potential energy

Question 13

Quantum Theory

Answer 13

a mathematical descrition of the wave properties of electrons

Question 14

Orbital

Answer 14

3-D region around the nucleus that indicates the probable location of an electron

Question 15

Quantum Numbers

Answer 15

four numbers that specify the properties of atomic orbitals and the properties of their electrons

Question 16

What is the P in PAMS ESOS

Answer 16

Principal Q.N.

Question 17

What is the A in PAMS ESOS

Answer 17

Angular Momentum Q.N.

Question 18

What is the M in PAMS ESOS

Answer 18

Magnetic Q.N.

Question 19

What is the first S in PAMS ESOS

Answer 19

Spin Q.N.

Question 20

What is the E in PAMS ESOS

Answer 20

Energy levels

Question 21

What is the second S in PAMS ESOS

Answer 21

Shapes

Question 22

What is the O in PAMS ESOS

Answer 22

Orientation

Question 23

What is the third S in PAMS ESOS

Answer 23

States

Question 24

Aufbau Principle

Answer 24

an electron occupies the lowest energy orbital that can receive it

Question 25

Pauli Exclusion Principle

Answer 25

no 2 electrons in the same atom can have the same set of 4 Q.N.

Question 26

Hund's Rule

Answer 26

orbitals of the same energy levels all have to be occupied by 1 electron before you can fill them up with 2

Question 27

Orbital Notation

Answer 27

using arrows to represent electrons in orbitals

Question 28

Electron Configuration Notation

Answer 28

using superscripts to represent electrons within orbitals

Question 29

Electron Dot Notation

Answer 29

shows the electrons in the highest energy level with dots

Question 30

Highest occupied Energy Level

Answer 30

electron containing the main energy level with the highest Principle Q.N.

Question 31

Inner Shell Electrons

Answer 31

electrons that are not in the highest occupied energy level

Question 32

Heisenberg Uncertainty Principle

Answer 32

states that it is impossible to determine the position and velocity of an electron