Electrons in Atoms and Light Spectrum

Question 0

Base of the energy line

Answer 0

Origin

Question 1

All waves move at

Answer 1

3x10^8m/s

Question 2

High point on a wave

Answer 2

Crest

Question 3

Low point on a wave

Answer 3

Trough

Question 4

Distance from origin to crest

Answer 4

Amplitude

Question 5

Distance from crest to crest

Answer 5

Wavelength

Question 6

The number of waves that pass a given point per second. Abbreviated by v

Answer 6

Frequency

Question 7

Equation frequency and wavelength

Answer 7

C=yv
C=3x10^8 m/s
v=hz (frequency)
Y= m (wavelength)

Question 8

Radio waves, microwaves, infrared

Answer 8

Left end of spectrum (red orange yellow) low energy

Low frequency, long wavelength

Question 9

Ultra-violet, x-Rays,gamma rays,

Answer 9

right end of spectrum (blue indigo violet)
High energy
High frequency
Short wavelength

Question 10

All colors combined

Answer 10

White light

Question 11

Energy and frequency equation

Answer 11

E=hxv
h=plancks constant 6.6262x10^-34joulesxsec
v=frequency

Question 12

Matter is made up of solid invisible particles

Answer 12

Democritus

Question 13

One type of atom for every element

Answer 13

Dalton

Question 14

Discovered electrons
Atoms were made of positive stuff
Negative electron floating around
“Plum Pudding” model

Answer 14

J.J Thompson’s model

Question 15

Discovered dense positive piece at the center of atom- nucleus
Electrons would surround it
Mostly empty space
“Nuclear model”

Answer 15

Ernest Rutherford’s Model

Question 16

Electrons move in circular orbits, amounts of energy separate on level from another
“Planetary model”

Answer 16

Bohr

Question 17

Derived an equation that described the energy and position of the electrons in an atom

Answer 17

Schrodinger

Question 18

It can tell us the probability of finding an electron a certain distance from the nucleus
Quanta is the amount of energy needed from one energy level to another
Orbits are not circular

Answer 18

The quantum mechanical model

Question 19

The variable for the energy level of the electron

Answer 19

Principal quantum number (n)

Question 20

Regions where there is a high probability of finding an election

Answer 20

Atomic orbitals

Question 21

S orbital
# of shapes
Max electrons
Starts at energy level

Answer 21

# of shapes I max electrons Ienergy lev
        1          I          2            I       1

Question 22

P orbital
# of shapes
Max electrons
Starts at energy level

Answer 22

#of shapes I max electrons I energy lev
       3          I          6            I       2

Question 23

D orbital
# of shapes
Max electrons
Starts at energy level

Answer 23

#shape I max electrons I energy level
     5      I         10           I         3

Question 24

F orbital
# of shapes
Max electrons
Starts at energy level

Answer 24

#shapes I max electrons I energy level
      7       I          14          I        4

Question 25

Electrons enter the lowest energy first

This causes difficulties b/c of the overlap of orbitals of different energies

Answer 25

Aufbau principle

Question 26

at most 2 electrons per orbital- different spins

Answer 26

Pauli Exclusion principle

Question 27

When electrons occupy orbitals of equal energy they don’t pair up until they have to

Answer 27

Hund’s Rule

Question 28

Speed of light

Answer 28

3x10^8 m/s

Question 29

What type of wave is light?

Answer 29

Electromagnetic radiation

Question 30

How are frequency and wavelength related?

Answer 30

Inversely related; as one goes up the other goes down

Question 31

How are frequency and energy related?

Answer 31

Directly related; frequency x Plancks constant equals energy

Question 32

Range of the variety of frequencies

Answer 32

Spectrum

Question 33

Passing a white light through it separates it

Answer 33

Prism

Question 34

Combination of all colors

Answer 34

White light

Question 35

Absence of all colors

Answer 35

Black

Question 36

Planck’s constant

Answer 36

6.6262x10^-34 joulesxsec

Question 37

What is energy measured in?

Answer 37

Joules

Question 38

Frequency measured in?

Answer 38

Hz

Question 39

Wavelength measured in?

Answer 39

m