Nuclear Chemistry

Transmutation

The transformation of one atom to another atom is called

Alpha, Beta and Gamma

Three different types of radiation

Nucleaus

During radioactive decay, the ___ will emit particles of radiation in order to become more stable

Fusion

The reactions inside the sun are an example of a ___ reaction

Alpha

If you want block___ radiation, paper or clothing will be used: extremely heavy

Radiostopes

Radioactive isotopes or ___, have different mass numbers but the same atomic number and will decay overtime

Uranium-238

is used to calculate how old a fossil or rock is

Half life

is the time it takes for half a sample of nuclei to decay into more stable nuclei: half the nuclei decays

Fusion reactions release __ energy than fission reactions

far more

For elements that have an atomic number less than 20, stable nuclei have a neutron:proton ration equal to ____

1:1

Radioactivity

Is the spontaneous emission of radiation by an unstable nucleus

Iodine-131

A common isotope used to diagnose thyroid disease is called ___

Beta

#1 During_____ decay, the atomic number will increase by 1 and the mass number will remain unchanged. #2 The particle that is really an electron

Radioactivity

The process by which substances spontaneously emit radiation

Band of Stability

Nuclei that falls inside the _____ are considered to be stable (resistent to change).

The atomic number determines how many ____ there are.

Protons

Gamma

Can penetrate through paper, wood, and thin layers of lead

Isotopes

Two atoms with the same atomic number but diffrent mass numbers

Nucleus

The part of the isotope that undergoes changers during a nuclear reaction