Vocab
the emission of ionizing radiation or particles caused by the spontaneous disintegration of atomic nuclei
What is Radioactivity
A positively charged particle emitted from certain radioactive nuclei; it consists of two protons and two neutrons and is identical to the nucleus of a helium atom
What is Alpha Particle
the emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles which cause ionization.
What is Radiation
spontaneous decrease in the number of radioactive atoms in radioactive material
What is Decay
the amount of time it takes for one-half of a radioactive isotope to decay
What is Half-life
the determination of the age or date of organic matter from the relative proportions of the carbon isotopes carbon-12 and carbon-14 that it contains
what is Carbon Dating
An electron resulting from the breaking apart of neutrons in an atom
What is Beta Particle
The penetrating rays and particles emitted by a radioactive source
What is Nuclear Radiation
Is the process by which an unstable atomic nucleus loses energy by radiation
What is Radioactive Decay
Longest half-life
What is Uranium
describes how the universe expanded from an initial state of high density and temperature
What is Big Bang Theory
What is Proton
What is types of devices that can be used to detect radiation
A nuclear decay process where an unstable nucleus changes to another element by shooting out a particle composed of two protons and two neutrons
What is Alpha Decay
Most natural Radioactive element
happens in interstellar molecular clouds: opaque clumps of very cold gas and dust
What is Star Formation
What is Neutron
Radiation with enough energy to knock electrons off some atoms of a bombarded substance to produce ions
What is Ionizing radiation
a type of radioactive decay in which an atomic nucleus emits a beta particle (fast energetic electron or positron), transforming into an isobar of that nuclide.
What is Bismuth
occurs when two atoms slam together to form a heavier atom,
What is Fusion
A high energy photon emitted by a radioisotope
What is Gamma Rays
Alpha radiation, beta radiation, and gamma radiation
What is the three types of nuclear radiation
type of radioactivity in which some unstable atomic nuclei dissipate excess energy by a spontaneous electromagnetic process
The most radioactive pace in the world
What is Ramsar, Australia