Radioactive Isotopes

1
Radioactive Isotopes
2
The Atoms nucleus is held together by energy!!!

• Nuclear energy holds together the nucleus.
• This Nuclear Energy is the most powerful compact
  energy known to man!!!
• Some Atoms are unstable and they leak energy.

3
These atoms are known as isotopes.

• Unstable atoms.
• Have too many neutrons in their nucleus.
• Are unstable because of the extra neutrons.
• They Leak energy. They are radioactive.

4
3 Types of energy can come out of isotopes

• Alpha rays- weak, travel a few feet, can
  penetrate paper
•  
• Beta rays- semi weak travel yards and can go
  through thin glass and metal
•   
• Gamma Rays- travel great distance and can
  penetrate more than 2ft of concrete.

5
½ life

• Radioactive material will leak its energy
  forever, BUT
• The amount of time it takes to leak out one half
  of its energy
• IS CALLED ITS ½ LIFE

6
Radiation is often associated with good and bad
things

• Radiation can help find cancer and other bad
  things in the body. It can also cause cancer

7
The Good

• X-rays
• CAT scans
• Cleansing food
• Television Sets
• Fire Alarms
• Cell Phones/GPS Units

8
In order to understand how radiation causes
cancer

• You need to know what cancer is

9
What is Cancer?

• When cells begin dividing out of control.
• Tumors are lumps of cells that will not stop
  growing.

10
Where does Cancer happen?

• Any cells, anywhere in living tissue.

11
What causes Cancer?

• Old Age
• Genetics
• Environmental Factors (Smoking, Sunburns, Foods)

12
3 ways that we fight Cancer.

• Surgery Cut it out
• Radiation Kill it with gamma rays
• Chemotherapy - Kill it with chemicals