Nuclear Chemistry The Guide to types of Radioactive Decay and their Properties.

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Presentation transcript:

Nuclear Chemistry The Guide to types of Radioactive Decay and their Properties

Outline This presentation will teach you about: The process of radioactive decay in five different situations: Alpha Emission, Beta Emission, Positron Emission, Electron Capture and Gamma Emission. Each slide will highlight the process and give you two pictures to give further explanation. The slides will also have equations helping you differentiate between four of the types of decay and how they change elements. After the explanations there is a conclusion slide and a bibliography crediting the websites for their awesome explanations.

Alpha Emission Alpha Emission is caused by an excess of protons in a nucleus; in order to fix this, a Helium atom is tunnels out when emitted and the nucleus is stable again.

Beta Emission Beta Emission occurs when the ratio of neutrons to protons is to large, causing a nucleus to be unstable.

Positron Emission Positron Emission is the opposite of Beta Emission, this time the ratio of neutrons to protons is too small; when this happens, a proton turns into a neutron and creates a positron, or a positively charged electron.

Electron Capture In this type of decay, it is also a situation where the neutron to proton ratio is too small; this time, an inner orbital electron is captured by the nucleus and a neutron is formed.

Gamma Emission Gamma emission allows a nucleus to go back to normal after it is in an excited state; the process also supports the nuclear shell model: which states that gamma rays are produced when nuclear particles undergo transitions in the nuclear energy levels.

Conclusions These five types of Radioactive decay show us that the stability of a nucleus its number of protons and electrons tells us which kind of radioactive decay it may go through. Also, we can see from this that not all atoms are radioactive, but that of the ones that are their properties that fit certain guidelines tell us how they go through emission to become stable.

Bibliography - alpha pic, beta pic, positron pic, electron capture pic and gamma pic alpha2 gif&imgrefurl= /28383/ nowe_teksty/htmla/ 1_27a.html&h=340&w=290&sz=4&hl=en&start=4&tbnid=8Ivb2UNcgRfqGM:&tbnh=119&tbnw=102&prev=/ima ges%3Fq%3DBeta%2BEmission%26gbv%3D2%26svnum%3D10%26hl%3Den – beta electron2 - positron2 - equations -other equations gamma emission pic gamma equation