Production of Radioactive Materials (2)

Question 1

Isotopes

Answer 1

Atoms of the same Atomic Number (A) that differ in the # of neutrons

Question 2

Stable Isotopes

Answer 2

Isotopes that don’t have nuclear properties are considered stable

Question 3

Unstable Isotopes

Answer 3

Isotopes with to little or to many neutrons

• Radioactive Isotopes
• Radionuclides
• Have Nuclear Properties

Question 4

Natural Radioisotopes

Answer 4

Made Radioactive from a natural source

Question 5

Cosmic Radiation

Answer 5

Radiation the reached the earth from the sun and space

Question 6

Radioactive Decay

Answer 6

Decay of natural Radioactive elements

Question 7

Internal Radiation

Answer 7

Radiation from the body

• Eating healthy
• Breathing air
• Drinking water

Question 8

Man-Made Radioisotopes

Answer 8

Produced in a reactor from bombarding the nuclei with neutrons.

• Used in Industrial Radiography
• Nuclear Fission
• Altering N/Z Ratio (neutron-to-proton)

Question 9

Nuclear Fission

Answer 9

Breaking an atom from high-speed particles (neutrons) that split the atom into two atoms which will have a lower atomic number (# protons) than the original.
- Also releases radiation, heat and neutrons

Question 10

Fissile

Answer 10

An element thats nucleus can be split through Nuclear Fission

Question 11

How do we alter the neutron-to-proton ratio (N/Z) to create Radioactive Materials?

Answer 11

Without the use of Fission, bombard an atom with projectiles (alpha particles, protons, neutrons). The nucleus picks up an extra neutron, becoming Radioactive/unstable.

Question 12

Neutron Bombardment / Neutron Activation

Answer 12

Bombarding a nucleus with neutrons until it absorbs one and becomes Radioactive.
- Altering N/Z ratio