Unit 4: Nuclear Chemistry

a branch of science that deals with the structure of and changes in the atomic nucleus

helium nucleus (2 protons and 2 neutrons), which is often released from a large atom

a high-speed electron or positron emitted from the nucleus

electromagnetic waves emitted from the nucleus

the time needed for half of a sample of radioactive material to decay

the decay of an unstable nucleus (too many protons, not enough neutrons) followed by the release of radiation

atom of the same element that differ in the number of neutrons in the nucleus

the process of determining the age of an object using the principles of radioactive decay

the process whereby a heavy nucleus splits into two intermediate-sized nuclei, with the emission of neutrons and conversion of mass into energy that is released

the process whereby smaller nuclei fuse to form larger ones, with mass converted into energy that is released

the isotope that undergoes radioactive decay

the stable isotope produced by the radioactive decay of the parent isotope

Atoms of the same element that have different numbers of neutrons., notation that shows the chemical symbol, atomic number, and mass number for an isotope of an element

the smallest component of an element having the chemical properties of the element

A subatomic particle that has a positive charge and that is found in the nucleus of an atom

A subatomic particle that has no charge and that is found in the nucleus of an atom

The average mass of all the isotopes of an element

the sum of the number of neutrons and protons in an atomic nucleus

A symbolic method for expressing the composition of an atomic nucleus; the mass number and atomic number are indicated to the left of the chemical symbol for the element

The type of notation where you write the average mass over the atomic number followed by the symbol

Is the transfer of energy thourgh space by visible light, UV radiation, and othr electromagnetic waves.

beta plus decay (β+ decay) is a particular type of radioactive decay , in which a proton inside a radioactive nucleus is converted into a neutron while releasing a positron and an electron neutrino.

There are two reactants or the nucleus that is being bombarded and the high-energy particle.

some elements release radioactive particles on their own and change into other elements. The radioactive element is the only reactant

Energy that is harnessed from reactions among radioactive isotopes

Process by which certain unstable atoms or elements undergo spontaneous decay, in an effort to attain a more stable nuclear state