Presentation is loading. Please wait.

Presentation is loading. Please wait.

Radioactivity.

Published byArnold Wilkerson Modified over 5 years ago

Similar presentations

Presentation on theme: "Radioactivity."— Presentation transcript:

1 Radioactivity

2 What is Radioactivity? Discovered by Marie Currie
Spontaneous emission of radiation by unstable atomic nuclei

3 What causes Radioactivity?
Different isotopes that are less stable Tracers- Radioactive isotopes which can be followed through the steps of a chemical reaction Radioactive uses in medicine: Isotopes are used to treat some diseases or detect medical problems Radiation therapy

4 Radioactive Elements & Isotopes?
Uranium- 235 Iodine- 131 Cobalt- 60 Technetium- 99 Nickel- 63 Radium- 226 Polonium

Download ppt "Radioactivity."

Similar presentations

4-5: Radioactive Elements

4-5: Radioactive Elements
Periodicity 1.

Periodicity 1.
Nuclear Physics Spring 2013.

Nuclear Physics Spring 2013.
Mini Quiz- Half Sheet H = 1.01 g/mol, O = 16.00 g/mol S = 32.07 g/mol, N = 14.01 g/mol, I = 126.90 g/mol 1.How many grams in 3.4 x 10 23 molecules of H.

Mini Quiz- Half Sheet H = 1.01 g/mol, O = g/mol S = g/mol, N = g/mol, I = g/mol 1.How many grams in 3.4 x molecules of H.
LOJ Feb 2004 Radioactivity 1 What is radioactive decay?

LOJ Feb 2004 Radioactivity 1 What is radioactive decay?
Atomic Symbols and Isotopes

Atomic Symbols and Isotopes
Physical Scienc Uses of radioactive material. Nuclear Fusion The combining of small atomic nuclei to produce larger ones.

Physical Scienc Uses of radioactive material. Nuclear Fusion The combining of small atomic nuclei to produce larger ones.
Learning Outcomes Historical outline of radioactivity: work of Becquerel (discovery of radiation from uranium salts); Marie and Pierre Curie (discovery.

Learning Outcomes Historical outline of radioactivity: work of Becquerel (discovery of radiation from uranium salts); Marie and Pierre Curie (discovery.
NUCLEAR CHEMISTRY. Discovery of Radiation Roentgen (1895) Discovered a mysterious form of radiation was given off even without electron beam. This radiation.

NUCLEAR CHEMISTRY. Discovery of Radiation Roentgen (1895) Discovered a mysterious form of radiation was given off even without electron beam. This radiation.
Nuclear Chemistry Nuclear Chemistry The study of nuclear reactions and their use in chemistry.

Nuclear Chemistry Nuclear Chemistry The study of nuclear reactions and their use in chemistry.
Nuclear Chemistry Unit 2.5.

Nuclear Chemistry Unit 2.5.
NUCLEAR CHEMISTRY. Most stable nuclei contain even numbers of both neutrons and protons.

NUCLEAR CHEMISTRY. Most stable nuclei contain even numbers of both neutrons and protons.
RADIOACTIVE ELEMENTS. A Quick Review What makes carbon carbon? What defines an element? The number of protons!!!

RADIOACTIVE ELEMENTS. A Quick Review What makes carbon carbon? What defines an element? The number of protons!!!
NUCLEAR CHEMISTRY 1 Isotopes-Review  Isotopes are atoms of the same element that have the same # of protons but different # of neutrons or mass. X Atomic.

NUCLEAR CHEMISTRY 1 Isotopes-Review  Isotopes are atoms of the same element that have the same # of protons but different # of neutrons or mass. X Atomic.
Chapter 25 – Nuclear Changes

Chapter 25 – Nuclear Changes
Notes 4-5 Radioactive Elements.

Notes 4-5 Radioactive Elements.
Nuclear Chemistry. Two main forces in nucleus  Strong nuclear force—all nuclear particles attract each other  Electric forces—protons repulse each other.

Nuclear Chemistry. Two main forces in nucleus  Strong nuclear force—all nuclear particles attract each other  Electric forces—protons repulse each other.
Sc Standards PS 2.2 Illustrate the fact that the atoms of elements exist as stable or unstable isotopes.

Sc Standards PS 2.2 Illustrate the fact that the atoms of elements exist as stable or unstable isotopes.
Radioactivity. Henri Becquerel In 1896, Becquerel observed that uranium compounds emitted a penetrating radiation that passed through paper and affected.

Radioactivity. Henri Becquerel In 1896, Becquerel observed that uranium compounds emitted a penetrating radiation that passed through paper and affected.
Notes 4-5 Radioactive Elements. Isotopes Atoms with same number of protons but different numbers of neutrons Example: Carbon-12 (normal carbon) versus.

Notes 4-5 Radioactive Elements. Isotopes Atoms with same number of protons but different numbers of neutrons Example: Carbon-12 (normal carbon) versus.

Similar presentations

Ads by Google