Ozone: Radiation

Question 1

What is the order of the EM spectrum in Increasing Frequency ( energy )

Answer 1

Radio 
Micro 
IR
Visible 
UV 
X-Ray 
Gamma Ray

Question 2

What is the order of the EM spectrum in Increasing Wavelength

Answer 2

Gamma 
X- Ray 
UV
Visible 
IR
Micro 
Radio

Question 3

Which EM wave has the highest frequency ( energy )

Answer 3

Gamma

Question 4

Which EM wave has the longest wavelength

Answer 4

Radio

Question 5

Which EM wave has the lowest frequency ( energy )

Answer 5

Radio

Question 6

Which EM wave has the shortest wavelength

Answer 6

Gamma

Question 7

What is the equation for speed of light, c

Answer 7

C= v lamda

Speed of light = frequency x wavelength

Question 8

The two equation for energy

Answer 8

1. E = hv ( energy, J = planks constant x frequency )

2. E=hc / lamda ( planks constant x speed of light / wavelength )

Question 9

What happens when a molecule absorbs IR radiation

Answer 9

1. IR causes changes in the level of vibration energy of bonds
2. Bonds are not broken
3. IR is used in analysis of compounds

Question 10

What happens when molecules absorb Visible & UV radiation

Answer 10

1. Visible & UV cause changes in the level of electronic energy ( effect what the electron can absorb )

Question 11

What happens to electrons at lower absorbed energies of radiation

Answer 11

Electrons may be excited to a higher energy level the fall back to a lower energy level

Question 12

What happens to electrons at higher absorbed energies of radiation

Answer 12

• bonding electrons separate
• covalent bonds break by homolytic fission
• radicals are formed

Question 13

Definition of heterolytic fission

Answer 13

Shared electrons go to one atom when bond is broken, forms ions

Eg. In polar molecules

Question 14

Definition of homolytic fission

Answer 14

Electrons are shared equally when bond is broken.

Leads to radical formation